NREMT EMT — All Questions

Under the National EMS Scope of Practice Model, which capability is generally added at the AEMT level that an EMT does not have?

• a.Administering oral glucose to a conscious patient with suspected low blood sugar
• b.Inserting an oropharyngeal airway in an unresponsive patient with no gag reflex
• c.Establishing peripheral intravenous access and administering IV fluids✓
• d.Interpreting a cardiac rhythm and delivering manual defibrillation

Peripheral intravenous access, together with intravenous fluids and a small formulary of intravenous medications, is the capability the Advanced EMT level adds above the EMT. Oral glucose for a conscious patient and insertion of an oropharyngeal airway are both already inside the EMT scope. Interpreting a cardiac rhythm and defibrillating manually sits at the paramedic level; an EMT's defibrillation is done with an AED, which reads the rhythm itself. The national model is a template rather than a law, so the scope any individual provider actually holds is set by that provider's state and, within it, by the service's medical director.National EMS Scope of Practice Model

An EMT assists a patient with the patient's own prescribed nitroglycerin by following a written protocol, without contacting a physician first. What type of medical direction authorized this action?

• a.Offline medical direction, because the physician's authorization was issued in advance as a protocol✓
• b.Delegated practice, which lets an EMT give any medication a patient already has a prescription for
• c.Implied consent, because carrying the prescription shows the patient agreed to the medication
• d.Online medical direction, because the service's medical director personally signed that protocol document

Authorization granted ahead of time in the form of written protocols and standing orders is offline, or indirect, medical direction. Online direction means reaching a physician in real time by radio or phone for that specific patient; a physician's signature on a protocol is what makes the protocol valid, not what makes the direction online. An EMT does practice under delegated physician authority, but that delegation reaches only the medications and procedures the protocol names — a patient's own prescription does not enlarge it. Consent and medical direction are separate requirements that both have to be met: consent comes from the patient, the authority to act comes from the physician.

An ambulance responding with lights and siren reaches a red traffic light at a busy intersection. Under the standard of 'due regard' that state vehicle codes apply to emergency vehicle operators, what should the driver do?

• a.Cross at any speed while the lights and the siren are operating
• b.Proceed at the posted speed limit, holding the right of way
• c.Stop, then cross one lane at a time as each lane yields✓
• d.Cross without stopping, after slowing enough to react to cross traffic

Due regard means the driver stays personally responsible for the safety of everyone else, whatever exemption the traffic code grants. Lights and siren request the right of way, they do not confer it, and a driver who is not seen or not heard has no protection at all. State codes typically permit an emergency vehicle to pass a red signal only after slowing as necessary for safe operation, which makes 'slow, then cross' the tempting answer; emergency vehicle operator training goes further and teaches a full stop with the intersection cleared lane by lane, because a driver who merely slows cannot confirm that the far lanes have yielded, and the near lane stopping is exactly what hides the vehicle still coming in the far one. Intersection collisions are among the most common ways EMS crews and the patients they carry are injured, and the exemption is no defense once the crash has happened.

A helicopter is inbound to a rural crash scene. Which instruction about approaching the aircraft is correct?

• a.Approach from the rear of the aircraft, where the pilot has the clearest view of the ground crew
• b.Approach from the front, in the pilot's view, and only after the crew signals you in✓
• c.Approach as soon as the skids touch down so the transfer is not delayed by the shutdown sequence
• d.Approach from whichever side is uphill so the rotor disc stays well above head height

Ground crews approach a medical helicopter from the front, inside the pilot's field of view, and only after a crew member waves them in. The tail rotor is the lethal hazard and it is close to invisible when turning, so an approach from the rear is never correct. Waiting for the signal matters whether or not the rotors are still turning, because the crew, not the ground unit, decides when the aircraft is ready. Approaching uphill is exactly backwards: on sloping ground the rotor disc sits closest to the ground on the uphill side, so any approach on a slope is made from the downhill side.

EMS is staged at a hazardous materials incident. Where do EMTs without specialized hazmat training normally work, and what is their role?

• a.In the warm zone, where the decontamination corridor is set up and patients can be reached soonest
• b.In the hot zone with the entry team, so treatment begins at the point of exposure
• c.In the cold zone, receiving and treating patients only once they have been decontaminated✓
• d.In the cold zone, but stepping into the warm zone to help move patients who cannot walk out

EMTs without hazmat training and the matching protective equipment work in the cold zone and take patients only after decontamination, because a contaminated patient contaminates the crew, the ambulance and then the emergency department. The warm zone holds the decontamination corridor and is staffed by trained personnel in protective equipment; moving a non-ambulatory patient through that corridor is that team's job, and a good reason for entering is not a substitute for the training and the equipment, which is what makes stepping in 'just to help carry' the most tempting wrong answer here. The hot zone is limited to the entry team. Zone boundaries and the level of protection each requires are set by the hazmat branch under the incident commander.

An EMT arrives first at a single-vehicle crash and sees a diamond-shaped placard with a number on the trailer. What is the correct next step?

• a.Approach the cab closely enough to read the shipping papers, which name the exact material and quantity
• b.Move in immediately to reach the driver, since a short exposure keeps the risk low
• c.Stay well uphill and upwind, and look the placard number up in the Emergency Response Guidebook✓
• d.Read the placard's color and shape, which classify the hazard closely enough to act on

The placard is read from a distance, from uphill and upwind, and the identification number is looked up in the Emergency Response Guidebook, which gives the initial isolation and protective action distance for that material before anyone moves closer. Shipping papers do name the material more precisely, which is what makes that the strongest distractor, but they are carried in the cab within the driver's reach — inside the very area the guidebook exists to keep responders out of until the distance is known. The placard's color and shape give the hazard class only, not the material and not any distance. And an unknown material offers no safe exposure time, so a short exposure is not a low-risk one.

Under the Incident Command System, what does 'span of control' refer to?

• a.The number of people one supervisor can effectively direct, usually three to seven✓
• b.The list of agencies that have authority to assume command at a multi-jurisdiction incident
• c.The geographic area an incident commander is legally responsible for securing and managing
• d.The chain through which orders pass from the incident commander down to the crews

Span of control is a supervision ratio: one supervisor directs roughly three to seven subordinates, with five as the usual working figure, and once the incident grows past that the organization adds another layer of supervisors rather than stretching the ratio. The route orders travel, with each person reporting to exactly one supervisor, is the chain of command and unity of command — a closely related ICS principle and the reason that option is worth a second look, but it describes the direction of reporting rather than how many people report. The ground an incident covers is its perimeter, and which agency holds command at a multi-agency incident is settled through unified command.

During START triage, a patient who did not get up and walk to the collection area when directed is assessed and found to be breathing 24 times per minute, with a radial pulse present, and able to follow simple commands. How is this patient tagged?

• a.Immediate (red)
• b.Minor (green)
• c.Delayed (yellow)✓
• d.Expectant (black)

After the walking wounded have been directed away, START sorts each remaining patient on three checks: respirations, perfusion and mental status. Respirations of 24 are below the 30 per minute that would make this patient Immediate, a radial pulse is present, and the patient follows commands, so nothing triggers an upgrade and the tag is Delayed. Minor is assigned at the very first step to those who get up and walk to the collection area, which this patient did not do; following commands during an assessment is a mental status finding, not the ambulation test, and confusing the two is the usual error here. A respiratory rate that is merely above the normal adult range is not itself a START criterion. Expectant is used for a patient who is still not breathing after the airway has been opened. The four options are the four tag colors themselves, so they are near-identical in length by nature.

Which set of elements must all be present for a claim of negligence against an EMT to succeed?

• a.Breach of the standard of care, damages, and causation, with no separate duty to act required
• b.An error in care, a poor outcome, and a family willing to bring a lawsuit
• c.Duty to act, breach of that duty, damages, and causation linking the breach to the damages✓
• d.Abandonment of the patient, a documented injury, and no signed refusal form

Negligence requires four elements together: a duty to act, a breach of the standard of care, damages the patient actually suffered, and proximate causation tying the breach to those damages. The three-element version that drops the duty is the distractor worth thinking about, because breach, damages and causation are the elements people remember — but in most states an off-duty EMT who drives past a collision, with no relationship to the patient and no statute creating one, has no duty and therefore cannot be negligent for not stopping. The duty is what makes the remaining three actionable. A poor outcome with no breach is not negligence, and a breach that causes no harm is not either. Abandonment and refusal documentation are separate legal problems, not the elements of negligence.

A 15-year-old is injured at a skate park and no parent or guardian can be reached. Under the doctrine generally applied in this situation, how should the EMT proceed?

• a.Have the minor sign the treatment consent form, which makes the consent legally expressed
• b.Withhold all care until a parent arrives, because a minor cannot lawfully consent to treatment
• c.Treat the minor under implied consent, and document the attempts made to reach the guardian✓
• d.Ask an adult bystander to consent on the minor's behalf and record that person's name

When a minor has an emergency condition and a parent or guardian cannot be reached, the law generally presumes a reasonable parent would consent, so the EMT treats under implied consent and documents the attempts made to reach the guardian. Waiting for a parent while an emergency goes untreated is the outcome that doctrine exists to prevent. A bystander, however responsible, has no authority to consent for someone else's child, and a minor's signature does not create valid expressed consent where the minor cannot legally give it. The age of majority, the rules on emancipated and married minors, and the conditions a minor may consent to alone all vary by state, so the local protocol and state law govern the individual case.

A family presents a valid do-not-resuscitate order for a patient in cardiac arrest. What does a DNR order generally direct an EMT to do?

• a.Withhold resuscitation but continue oxygen, suctioning and comfort care✓
• b.Withhold all care, including oxygen, suctioning and any comfort measures
• c.Begin full resuscitation and leave the hospital to honor the order later
• d.Begin chest compressions but withhold ventilations and airway suctioning

A DNR order directs that resuscitation not be started. It is not an order to withhold care, so oxygen, suctioning, positioning, warmth and any pain relief inside the EMT's scope continue as comfort measures, and reading a DNR as 'do nothing' is the most common and most harmful misreading of it. No DNR form asks a crew to compress the chest while withholding ventilation; that combination is not a level any form offers. Deferring the decision to the hospital defeats the point of a prehospital order, which exists precisely so that resuscitation is not begun in the field. Which document a state recognizes out of hospital, and what a crew does when the form cannot be produced or the family objects at the bedside, is set by state law and local protocol, so the service's own policy governs.

An EMT realizes an hour after arriving at the hospital that a vital sign set was recorded on the wrong line of the patient care report. How should the correction be made?

• a.Erase or white out the incorrect entry and write the correct values over it so the record reads cleanly
• b.Leave the report alone and tell the receiving nurse verbally, because an amended report loses its legal weight
• c.Draw a single line through the error so it remains readable, add the correction, then date and initial it✓
• d.Complete a fresh report from memory and discard the original so only one version exists

The record is corrected by striking the error with a single line so the original entry stays readable, writing the correct information beside it, and dating and initialing the change; information remembered later is added the same way as a dated late entry. Erasing, whiting out or destroying the original all look like concealment and can cost the report its credibility if it is ever read in court, which is the opposite of the tidy record those options promise. Telling the nurse verbally is worth doing for the patient's sake, but it does not correct the permanent record. An amended record does not lose its legal weight; a record that appears altered does.

Which entry in a patient care report narrative is objective rather than subjective?

• a.Patient appeared intoxicated and was uncooperative throughout the assessment
• b.Patient was clearly anxious about the crash and seemed to be exaggerating the pain
• c.Skin cool and moist; radial pulse 118 and regular; respirations 22, unlabored✓
• d.The crash was probably caused by speeding, judging from what bystanders said

Measurements and direct observations are objective: skin that is cool and moist to the touch, a pulse counted at 118 and regular, and a respiratory rate counted at 22 without labored effort are findings any other provider at that bedside would record the same way. Intoxicated, uncooperative, exaggerating and probably speeding are all conclusions, and a reader cannot check any of them; they prejudice the care the patient is given next and they read badly if the report is ever produced in court. Record the findings that sit underneath the conclusion instead — the odor of alcohol on the breath, an unsteady gait, the patient's own words in quotation marks, or a bystander's statement attributed to that bystander.

An EMT lifts the head end of a loaded stretcher. Which technique reflects correct body mechanics?

• a.Bend at the waist and use the strong muscles of the lower back to raise the load smoothly
• b.Lift with the legs while twisting toward the ambulance so the load never has to be set down again
• c.Keep the back straight and locked, feet shoulder width apart, and the weight close to the body✓
• d.Extend the arms fully to lift the load away from the body and keep it clear of the shins

A safe lift keeps the back straight and locked in, the feet about shoulder width apart, and the load held as close to the body as possible, because the leverage on the spine grows with every inch the weight moves away from it. Lifting with the legs is right as far as it goes, but twisting while loaded is one of the most common mechanisms of back injury in EMS, so combining the two does not make the lift safe. Bending at the waist transfers the work from the legs to the lumbar spine, and extending the arms to keep the load off the shins buys clearance at the price of exactly the leverage a straight-back lift is trying to avoid.

A patient is found sitting in a car that is burning. Which category of move does this situation call for?

• a.A non-urgent move, because the patient is seated and can be extricated in a controlled way
• b.An emergency move, because the danger to the patient outweighs the risk of moving them✓
• c.An urgent move, because a seated patient is moved with a rapid extrication technique
• d.No move at all until the fire is knocked down, since moving a patient risks worsening any spinal injury

Fire, the threat of explosion, hazardous materials, and an inability to reach other patients are the classic reasons for an emergency move, in which the patient is dragged clear along the long axis of the body before assessment and spinal precautions are completed. The urgent move is the distractor that deserves real thought, because a seated patient often is moved by rapid extrication — but urgent moves are driven by the patient's own condition, such as altered mental status with inadequate breathing, when no external threat is forcing the timing. Here the hazard is the car. Waiting for the fire to be knocked down is only defensible when the scene itself is not what is about to kill the patient.

A combative patient has been physically restrained under local protocol. Which positioning practice is required to reduce the risk of positional asphyxia?

• a.Restrain the patient face down on the stretcher, which limits the patient's ability to strike out
• b.Sit the patient upright with the chest strapped tightly enough to stop the torso moving
• c.Restrain the patient face down with the wrists secured together behind the back for crew safety
• d.Never restrain the patient face down or hog-tied, and monitor the breathing continuously✓

A restrained patient is never left prone or hog-tied, and the breathing is monitored continuously from the moment the restraints go on. Prone positioning, wrists drawn behind the back, and a chest strapped tight enough to stop the torso moving all restrict the chest wall movement the patient needs to breathe — and a patient who has been fighting has just built an oxygen debt, which is what makes any restriction of chest movement so dangerous in exactly this group. Upright positioning is otherwise reasonable; it is the tightness across the chest that makes that option wrong. Restraint is applied only where local protocol and state law permit it, usually with law enforcement present, and the number of restraints, the position and the monitoring interval are all documented.

Which item normally appears in the verbal hand-off report given at the patient's bedside but is kept out of the shorter radio report given while en route?

• a.The patient's age and sex, which the hospital uses to assign a bed and a team
• b.The chief complaint, which tells the hospital what is being brought in
• c.The estimated time of arrival, which sets when the hospital must be ready
• d.The patient's name, which is not put out over an open radio channel✓

The radio report is kept short and identifies the patient only by age and sex, because radio traffic can be picked up by anyone with a scanner; the name is given face to face at the bedside instead. Age, sex, chief complaint, the significant findings, the treatment given and an estimated time of arrival are what the hospital needs in advance so the right team and the right room are ready, so all of those belong on the radio. The bedside hand-off then adds the name, any history obtained during transport, further vital signs, and the patient's response to what was done.

Which statement about releasing a patient's information under privacy rules is correct for an EMT?

• a.It may be given to any nurse or physician who asks for it, at any facility
• b.It may be shared with those involved in this patient's care and treatment✓
• c.It may be released to the patient's spouse or to a parent whenever they ask
• d.It may be discussed in public once the name and the home address are left out

Disclosure for treatment, payment and health care operations is permitted, which is what lets a crew hand a patient off to the receiving nurse without a separate authorization; disclosure beyond that generally needs the patient's written authorization or a specific legal exception such as a subpoena or a mandatory report. Holding a clinical license somewhere is not the same as being involved in this patient's care, which is why 'any nurse or physician' fails. A spouse or parent has no automatic right of access either — for a competent adult patient it is the patient who decides what family is told. And stripping the name does not make the case public property, because the address, the time and the type of crash can identify the patient to anyone who was there. HIPAA reaches EMS agencies that transmit health information electronically for billing, and state confidentiality law can be stricter still.45 CFR 164.506

EMS is called to a scene that turns out to be a homicide, and the patient is obviously deceased. Which action best preserves the scene?

• a.Cover the body with a sheet from the ambulance and turn off any lights left burning in the room
• b.Move the body to the ambulance so the family is not left looking at the deceased any longer
• c.Search the pockets and wallet for identification and a medical history to complete the report
• d.Use a single path in and out, disturb as little as possible, and document whatever you moved✓

Once a patient is obviously dead and law enforcement holds the scene, the crew limits itself to one route in and out, touches as little as possible, and writes down anything that was moved or changed while the patient was being assessed. Moving the body, searching belongings for identification, laying a sheet over the body and switching lights off all alter evidence, and the sheet in particular can transfer fibers onto the body. Sparing the family the sight of the deceased is a real motive, which is what makes that option tempting, but it is the investigator's decision, not the crew's. Nothing about scene preservation delays care where there is any chance the patient is still viable.

A crew member has been irritable, sleeping badly and withdrawing from colleagues since a pediatric call two weeks ago. What is the most appropriate response?

• a.Encourage the colleague to use the service's peer support or employee assistance program✓
• b.Reassure the colleague that the reaction will pass and that talking about the call would make it worse
• c.Report the colleague to the medical director so that fitness for duty is formally reviewed
• d.Move the colleague permanently onto administrative duties, away from any further pediatric calls

Sleep disturbance, irritability and withdrawal that persist for weeks after a difficult call are recognized stress reactions, and the appropriate step is to encourage the confidential help the service already provides — peer support, an employee assistance program, or a mental health professional. Telling a colleague that talking about it would make things worse discourages exactly the help-seeking that resolves most of these reactions. A fitness-for-duty referral is the strongest competing answer and may well be right later if the colleague's ability to work safely is genuinely in question, but as the opening move it turns a colleague's distress into a formal proceeding and teaches the rest of the crew not to disclose. A permanent reassignment does the same and pre-empts a decision the colleague has not been offered.

Which task is part of the post-run phase of an ambulance call rather than the en-route or at-scene phase?

• a.Cleaning and disinfecting the patient compartment, restocking supplies, and completing the report✓
• b.Fastening seat belts and reviewing which crew member will take the lead on patient care
• c.Confirming the dispatch address and the nature of the call with the communications center
• d.Notifying the receiving facility of the patient's condition and the estimated time of arrival en route

Cleaning and disinfecting the patient compartment, restocking what was used and completing the patient care report are post-run tasks, and the unit is not genuinely available again until they are done. Confirming the address with dispatch, fastening belts and settling who leads patient care all belong to the en-route phase, and notifying the receiving facility happens during transport. The post-run phase is the one crews cut short when calls are stacking up, which is how the next patient meets equipment the last patient used.

During the daily vehicle check an EMT finds the portable suction unit will not hold a vacuum. What is the correct action?

• a.Note the fault on the checklist and stay available, relying on the mounted onboard unit
• b.Retest the unit on the way to the first call, once the pump has warmed up
• c.Carry a spare set of rigid catheters as a workaround until the maintenance shop reopens
• d.Remove the unit from service, replace it, and document the fault before taking a call✓

A portable suction unit that will not hold a vacuum is taken out of service, replaced from stock, and the fault documented before the ambulance goes back on the queue. Leaning on the mounted onboard unit is the answer worth arguing about, and it is wrong for a practical reason: the portable is the one that goes to the patient — down the stairs, into the wreck, out to the curb — and state ambulance equipment lists generally require a working portable unit in addition to the mounted one, so a unit missing it is not properly equipped. Catheters generate no suction on their own. Retesting later means the failure is discovered beside a vomiting patient, and the daily check exists precisely so it is found in the bay instead.

An EMT is preparing to suction an unresponsive patient who is vomiting copiously. Which personal protective equipment is indicated?

• a.Gloves, eye protection, and a mask, because a splash of vomit is likely during suctioning✓
• b.Gloves alone, which are sufficient because vomit is not classed as a bloodborne hazard
• c.Gloves and a gown, with eye protection reserved for calls involving arterial bleeding
• d.A fit-tested respirator and gloves, because the airborne route is the concern when suctioning

Any task likely to generate a splash calls for gloves, eye protection and a mask, and suctioning an actively vomiting patient is the standard example; a gown is added when clothing is likely to be soaked through. It is true that vomit without visible blood falls outside the bloodborne pathogens rule, but standard precautions go further and treat all body fluids as potentially infectious rather than sorting them by type, so that reasoning does not get an EMT down to gloves alone. Eye protection is not reserved for arterial bleeding — the eye is a mucous membrane and any splash reaches it. A fit-tested respirator is selected for suspected airborne disease such as tuberculosis, which is a different route of exposure from a splash.

An EMS system reviews a sample of patient care reports each month against its own protocols and feeds the findings back to crews as training. What is this process called?

• a.Medical direction, the physician authority a service operates under
• b.Continuous quality improvement, often shortened to CQI✓
• c.Peer review privilege, a legal protection for the findings of a review
• d.Mandatory reporting, a statutory duty to notify a state agency

Measuring performance against the service's own standard and feeding the result back as education is continuous quality improvement, and the patient care report is the raw material it runs on. Medical direction is the physician authority the service operates under; the medical director usually sponsors and signs off the improvement program, which is why that answer attracts people, but the authority and the review process are two different things. Mandatory reporting is a narrow statutory duty to notify an agency of specific things such as suspected abuse or certain communicable diseases. Peer review privilege is a legal doctrine that in many states shields the findings of such a review from discovery in litigation — it describes protection given to the output, not the name of the activity.

An EMT arrives at a two-car crash on a divided highway at night. Which element of scene size-up is assessed first?

• a.Scene safety, including oncoming traffic, downed power lines, and the vehicle stability✓
• b.The mechanism of injury, which determines whether spinal motion restriction will be needed
• c.The nature of the illness reported by dispatch, which frames the assessment before arrival
• d.The number of patients, so that additional ambulances can be requested without delay

Standard precautions and scene safety come first in the size-up, because an EMT struck by traffic or contacting an energized conductor becomes a second patient and subtracts a rescuer at the same time. Counting patients and calling for resources is the next step and matters greatly at a two-car crash, but it is done from a position that is already safe. Mechanism of injury and nature of illness shape the assessment that follows once the scene can be entered. On a divided highway at night, scene safety means positioning the apparatus to shield the work area and putting on high-visibility outerwear before anyone steps out of the cab.

A 58-year-old had chest pressure while shoveling snow that eased within about four minutes once he stopped and rested. He is now pain-free with normal vital signs. Which interpretation is most accurate?

• a.Chest pressure that stops with rest rules out myocardial infarction, so he can be told to see his own doctor this week.
• b.Being pain-free means no heart muscle was injured.
• c.Exertional chest pressure in a man of this age is diagnostic of an evolving myocardial infarction.
• d.This fits stable angina, but only hospital evaluation can exclude a heart attack.✓

Stable angina is brief, predictable, provoked by exertion and relieved by rest, which is exactly what he describes, but unstable angina and an early infarction can also ease temporarily and no field finding distinguishes them. The tempting claim that relief with rest rules out infarction is wrong for that reason: patients whose pain settles still turn out to have infarcted, which is why evaluation is needed rather than a clinic appointment days later. Nothing about the episode makes the diagnosis certain in either direction.

A 62-year-old man has 40 minutes of burning epigastric discomfort that he blames on a heavy meal. He is pale and sweating heavily and feels short of breath. He denies any chest pain at all. The EMT should:

• a.Withhold aspirin until a hospital electrocardiogram has confirmed that the problem is cardiac in origin.
• b.Treat the complaint as indigestion, since he denies any chest pain at all.
• c.Manage him as a possible acute coronary syndrome and assist with aspirin if not contraindicated.✓
• d.Offer an antacid and reassess in ten minutes.

Epigastric burning with diaphoresis and shortness of breath is a classic anginal equivalent, and older adults, women and people with diabetes often infarct without ever reporting chest pain, so the crew must work the case as an acute coronary syndrome. Waiting for the hospital electrocardiogram is the strongest competing choice and sounds cautious, but aspirin's benefit depends on being given early, the field cannot exclude infarction, and a single chewed dose carries little risk in a patient with no bleeding history or allergy. An antacid neither treats nor excludes an infarction and only delays transport.

Before assisting a patient with suspected acute coronary syndrome with aspirin, which finding under most EMS protocols would lead the EMT to withhold it?

• a.A blood pressure of 96/60, because aspirin lowers the pressure further in a patient who is already hypotensive.
• b.A previous heart attack treated with a coronary stent and daily clopidogrel.
• c.Active gastrointestinal bleeding or a known aspirin allergy.✓
• d.A heart rate of 52 beats per minute.

Aspirin is withheld for hypersensitivity to it and for active or recent bleeding, because its only meaningful hazards are allergic reaction and bleeding. The patient already taking clopidogrel is the tempting exclusion, since it feels like doubling up on blood thinners, but existing antiplatelet therapy is not a contraindication and protocols still direct the aspirin dose for a new suspected infarction. Aspirin has no effect on blood pressure or heart rate, so neither vital sign has any bearing on the decision.

Under a typical EMS protocol, aspirin for a patient with suspected acute coronary syndrome is given as:

• a.Two 325 mg enteric-coated tablets swallowed whole with water to protect the stomach.
• b.One 81 mg tablet swallowed whole, with the rest given later at the hospital.
• c.160 to 325 mg of chewable aspirin, chewed.✓
• d.A single 650 mg dose, repeated once after fifteen minutes.

Protocols call for roughly 160 to 325 mg, and the tablets are chewed rather than swallowed because chewing speeds absorption and platelet inhibition when minutes of clot growth matter. An enteric coating is designed to delay dissolution in the stomach, which is the opposite of what is wanted here, and swallowing whole tablets has the same drawback. Splitting the dose or repeating it in fifteen minutes is not part of the prehospital regimen.

A man with chest pain has his own prescribed nitroglycerin and a systolic blood pressure of 132 mmHg. He mentions he took tadalafil (Cialis) last night. Under most EMS protocols the EMT should:

• a.Assist with the nitroglycerin, since the blood pressure is well within the range the protocol requires.
• b.Withhold the nitroglycerin because of the risk of severe, prolonged hypotension.✓
• c.Assist with half of the usual dose to blunt the drop in blood pressure.
• d.Have him lie flat and take the nitroglycerin.

Nitrates combined with an erectile-dysfunction drug of this class can cause profound hypotension that does not respond well to treatment; protocols exclude nitroglycerin within roughly 24 hours of sildenafil or vardenafil and roughly 48 hours of the longer-acting tadalafil. An adequate starting blood pressure is the tempting reason to proceed, but the pressure being acceptable now is exactly the situation in which the combined vasodilation causes the crash. There is no half-dose provision for this interaction, and lying the patient flat does not prevent it.

Under a typical EMS protocol that lets an EMT assist a patient with his own nitroglycerin for chest pain, what must happen before each additional dose?

• a.Nothing further is needed, because the pressure was checked before the first dose and the doses are five minutes apart.
• b.The blood pressure is rechecked and must still meet the protocol's minimum.✓
• c.The patient must be given oxygen by nonrebreather mask before each further dose.
• d.The patient must stand up to show he tolerates the drug.

Every dose dilates veins and can drop the blood pressure, so the pressure is measured again before each dose and the dose is withheld if it has fallen below the protocol's threshold; typical protocols allow up to three doses about five minutes apart on that condition. Relying on the pre-first-dose reading is the tempting shortcut, but it tells the crew nothing about what the drug has already done. Oxygen is given for hypoxia rather than as a prerequisite, and standing a patient up after a nitrate invites syncope.

A patient's chest pain eases substantially a few minutes after one dose of his own prescribed nitroglycerin. What does this response tell the EMT about the cause of the pain?

• a.It confirms the pain is cardiac, since nitroglycerin relieves only pain from narrowed coronary arteries.
• b.It shows the artery has reopened, so he can be transported without further reassessment.
• c.It rules out a heart attack and points to stable angina.
• d.Very little about the cause of the pain.✓

Nitroglycerin relaxes smooth muscle generally, so it can ease esophageal spasm and other noncardiac pain, while a genuine infarction may improve for a while and then return; response to the drug is not a diagnostic test in either direction. The claim that it confirms a cardiac cause is the most tempting because that is how the drug is described to patients, but it is a vasodilator rather than a coronary-specific one. Whatever the response, the patient needs continued monitoring and transport.

A patient with long-standing heart failure has marked swelling of both ankles and distended neck veins, but his lungs are clear on both sides and he speaks in full sentences. This pattern points to:

• a.Left-sided heart failure, because the left ventricle is the chamber that fails first in most patients.
• b.Right-sided heart failure with systemic venous congestion.✓
• c.Early acute pulmonary edema, before crackles become audible.
• d.Cardiac tamponade from a pericardial effusion.

When the right side of the heart fails, blood backs up into the systemic veins, producing jugular distention, dependent swelling of the ankles and an enlarged, tender liver, with the lungs staying clear. Left-sided failure is the tempting choice because it is more common, but it backs blood up into the lungs and would produce crackles and breathlessness, which this patient does not have. Tamponade also distends the neck veins, but it develops acutely with hypotension and muffled heart sounds rather than over years of ankle swelling.

A 74-year-old fainted while sitting at dinner with no warning symptoms at all. She is alert again and says she feels fine; her pulse is 38 and regular and her blood pressure is 104/62. The EMT should recognize that:

• a.Because she has recovered fully and her blood pressure is adequate, she can safely refuse transport.
• b.Sudden syncope with a very slow pulse suggests a cardiac cause and needs monitored transport.✓
• c.The slow pulse is a normal vagal after-effect of fainting and will settle on its own.
• d.Fainting while seated is typical of a simple vasovagal episode.

A vasovagal faint usually happens while standing and gives warning, such as nausea, sweating, tunnel vision or lightheadedness; collapse with no warning while seated, together with a heart rate that is still profoundly slow afterward, suggests a dysrhythmia such as heart block. The vagal after-effect explanation is the strongest competing answer, because vagal tone genuinely does slow the heart during a faint, but that slowing is transient and resolves once the patient is supine and awake, not a persistent rate of 38. Feeling well proves nothing when the underlying rhythm can stop again.

While assessing a patient who called for an ankle injury, an EMT records a blood pressure of 192/108. She feels well, with no headache, visual change, chest pain or neurologic deficit. The EMT should understand that:

• a.A high reading without end-organ symptoms is not an emergency.✓
• b.The reading is almost certainly an artifact of a cuff that is too small and can be disregarded.
• c.Nitroglycerin should be offered to bring the pressure down before transport.
• d.This is a hypertensive emergency, and the crew should arrange an intercept to have the pressure lowered en route.

A hypertensive emergency is defined by acute end-organ dysfunction accompanying the high pressure, such as chest pain, neurologic change, severe headache with visual disturbance or pulmonary edema, not by the number alone; this reading is documented, reported and rechecked. A cuff that is too small does inflate readings, which is why the crew should confirm with a correctly sized cuff, but that is a reason to remeasure rather than to dismiss the value. Lowering blood pressure is not an EMT intervention, and nitroglycerin is neither carried for this nor prescribed to her.

A crew finds a man unresponsive and cold in an unheated garage. His jaw is rigid and there is dependent purple discoloration along his back where he lies. Under a typical EMS protocol, the crew should:

• a.Begin CPR and apply the AED, because lividity and rigor are unreliable in a cold environment.
• b.Begin CPR while a supervisor is asked to confirm the findings before it is stopped.
• c.Move him to the ambulance and transport with compressions.
• d.Withhold resuscitation and follow the protocol for a death scene.✓

Rigor mortis together with dependent lividity is one of the definitive signs of death that protocols list as grounds for withholding resuscitation, alongside decapitation, decomposition and injury incompatible with life. The cold-environment objection is the strongest competing answer, and it is true that a severely hypothermic patient can feel stiff and look dead, but that stiffness is generalized cold rigidity without settled pooling of blood in the dependent tissues, which takes a prolonged period of no circulation to appear. Starting compressions and then hunting for permission to stop only exposes the crew and the scene to unnecessary disruption.

An adult is found in cardiac arrest lying in the middle of a soft bed. As compressions are started, the EMT should:

• a.Begin compressions on the mattress and accept a shallower depth, since any delay is more harmful.
• b.Move him to the floor or slide a backboard under him.✓
• c.Raise the bed to waist height and compress while kneeling on the mattress.
• d.Deflate the mattress and compress with the arms bent to add force.

A soft mattress absorbs part of every compression, so the chest is squeezed far less than the rescuer's hand travel suggests and cardiac output falls; a firm surface, gained by moving the patient down or sliding a board underneath, takes only seconds. Accepting a shallower depth is the tempting trade, but shallow compressions generate little forward flow, so the few seconds spent are repaid immediately. Kneeling on the mattress makes the sinking worse, and bent arms tire the rescuer and reduce depth rather than adding force.

An EMT is alone with a 7-year-old in cardiac arrest until the rest of the crew reaches her. What compression-to-ventilation ratio should she use?

• a.15 compressions to 2 breaths, the pediatric ratio at every stage of a child resuscitation.
• b.30 compressions to 2 breaths, changing to 15:2 when a second rescuer arrives.✓
• c.Continuous compressions with no pauses for breaths.
• d.5 compressions to 1 breath.

A single rescuer uses 30:2 for a child or infant, the same ratio as for an adult, because one person cannot switch between the chest and the airway often enough to sustain 15:2; the ratio drops to 15 compressions to 2 breaths only once a second trained rescuer is working. The 15:2 answer is the strongest distractor because that ratio is genuinely pediatric, but it is defined for two rescuers. Compressions without breaths are not the recommendation in children, whose arrests are usually caused by a breathing problem.

Two EMTs are resuscitating a 3-month-old in cardiac arrest. Which compression technique should be used?

• a.Two thumbs with the hands encircling the chest.✓
• b.The heel of one hand on the lower half of the sternum, as for a small child.
• c.Both thumbs side by side over the upper sternum, above the nipple line.
• d.Two fingers on the sternum, the infant technique whatever the number of rescuers.

With two rescuers the two-thumb encircling-hands technique is preferred for an infant: it produces more consistent depth and force and lets the compressor stay in position while the partner ventilates. The two-finger technique is the correct choice for a lone rescuer, which is why it is tempting, but it delivers less consistent depth when a second pair of hands is available. Whichever technique is used, the compression site is the lower half of the sternum, just below the nipple line, not the upper sternum.

A 79-year-old woke gasping for breath and has crackles throughout both lungs and pink-tinged frothy sputum. Her blood pressure is 168/96 and she is alert and anxious. Under most EMS protocols, initial EMT care includes:

• a.Laying her flat with the legs raised to improve blood return to the heart and support the pressure.
• b.Assisting her with a friend's furosemide tablet to draw fluid off the lungs.
• c.Encouraging her to cough forcefully.
• d.Sitting her upright with the legs dependent, plus oxygen.✓

This is acute pulmonary edema from left-sided heart failure; sitting the patient upright with the legs hanging down lets fluid settle away from the upper lungs and reduces the volume of blood returning to an overloaded heart, while oxygen treats the hypoxia. Laying her flat with the legs raised is the reflex for a shock patient and is the most tempting wrong answer, but here it pushes still more blood into a heart that cannot move it and worsens the flooding of the lungs. An EMT may never give a medication prescribed to someone else, and coughing does not clear fluid out of the alveoli.

Where the EMT's scope permits placing a supraglottic airway, how does adult CPR change once that airway is in place?

• a.Compressions still pause every 30 compressions for two breaths, since pausing keeps the ventilations effective.
• b.Ventilation stops once the airway is in place.
• c.Continuous compressions with a breath every 2 seconds.
• d.Compressions become continuous, with one breath every 6 seconds.✓

Once an advanced airway seals the airway, breaths no longer have to be synchronized with compressions, so the compressor works continuously while the other rescuer delivers about 10 breaths per minute, one every 6 seconds. Continuing to pause after every 30 compressions is the tempting habit carried over from bag-mask CPR, but those pauses drop coronary perfusion pressure that then takes several compressions to rebuild. A breath every 2 seconds is 30 per minute, which raises pressure inside the chest, impedes venous return and reduces the output the compressions generate.

A bystander asks why hands-only CPR, which is encouraged for adults, is not what is recommended for a child. The best explanation is:

• a.Hands-only CPR is only approved for rescuers with formal training.
• b.A child's chest is too flexible for compressions alone to move blood, so breaths replace the missing circulation.
• c.Compressions may fracture a child's ribs, so ventilations reduce the number of compressions needed.
• d.Most pediatric arrests begin with a breathing problem, so ventilations matter more.✓

Adults usually arrest from a sudden rhythm problem with oxygenated blood still in the chest, whereas children usually arrest at the end of a respiratory or shock process, so their blood is already oxygen-depleted and rescue breaths are a necessary part of the resuscitation. Breaths do not create circulation, however, so describing them as replacing compressions is wrong, and a flexible chest makes compressions more effective rather than less. A bystander who is unwilling or unable to ventilate should still do compressions rather than nothing.

An adult in cardiac arrest has a hard lump under the skin below the left collarbone with a small surgical scar over it, consistent with an implanted pacemaker or defibrillator. The EMT should:

• a.Withhold the AED, because the implanted device will deliver its own shocks and an external shock could destroy it.
• b.Place the pad directly over the device so the shock reaches the heart.
• c.Place the pad about an inch clear of the device and use the AED normally.✓
• d.Turn the implanted device off first.

The pad is positioned about an inch, or 2.5 cm, away from the generator so that current is not shunted around the device or the heart, and the AED is then used exactly as usual. Withholding the shock is the dangerous temptation, since the patient is pulseless and the implanted device has plainly failed to restore a rhythm; an external shock may damage it, but that is a repairable problem in a survivor. An EMT has no means of switching the implant off, and a pad directly over it wastes energy on the metal can.

A man is pulled from a swimming pool in cardiac arrest onto a wet pool deck. Regarding AED use, the EMT should:

• a.Wait until he is completely dry from head to toe before attaching the pads, since surface water conducts the shock.
• b.Move him clear of standing water and dry the chest.✓
• c.Attach the pads at once without drying, because a little water does not affect the shock.
• d.Move him onto a rubber mat and shock without wiping the chest.

Standing water can carry current to rescuers, and a film of water on the chest lets the shock track across the skin between the pads instead of through the heart, so the patient is moved clear of pooled water and the chest is wiped dry before the pads go on. Drying him from head to toe is the tempting overcorrection, but it costs minutes of defibrillation delay for no added safety once he is off the wet surface and the pad sites are dry. A mat does not solve the problem of a wet chest between the pads.

A patient re-arrests in the back of an ambulance that is moving at highway speed, and the AED needs to analyze the rhythm. The crew should:

• a.Keep driving and let the AED analyze, because the device filters out vehicle vibration automatically.
• b.Keep driving and rely on chest compressions alone until arrival at the hospital.
• c.Disconnect the pads while the ambulance is moving.
• d.Stop the vehicle so the AED can analyze without motion artifact.✓

Road vibration and compressions both create artifact that an AED can misread as an organized rhythm or as a shockable one, so the standard practice is to bring the ambulance to a stop for the few seconds of analysis and, if advised, the shock. Trusting the device to filter the motion out is the tempting answer, but AED filtering is designed for a stationary patient, which is why every operating instruction says to stop movement during analysis. Giving up on defibrillation entirely abandons the only definitive treatment for ventricular fibrillation.

After a shock, a patient in cardiac arrest regains a strong palpable carotid pulse but remains unresponsive and is breathing about 6 shallow breaths per minute. The EMT should:

• a.Give high-flow oxygen by nonrebreather mask.
• b.Remove the AED pads and place him in the recovery position, then transport and check the pulse every five minutes.
• c.Resume chest compressions, because his breathing is inadequate.
• d.Leave the pads attached, ventilate with a bag-valve mask, and reassess frequently.✓

Return of circulation is fragile and re-arrest is common, so the pads stay on and the pulse and breathing are rechecked often, while breathing this slow and shallow is inadequate and must be assisted with positive pressure. A nonrebreather mask is the closest competing answer, but it only enriches the air a patient draws in himself, and 6 shallow breaths a minute do not move enough volume for that to matter. Compressions are not restarted while a pulse is present, and removing the pads throws away the ability to shock immediately if the rhythm deteriorates again.

What is the practical implication of the chain of survival for an EMS system responding to out-of-hospital cardiac arrest?

• a.Defibrillation is the only link that changes outcome, so the other links matter mainly for documentation.
• b.The links are carried out by hospital staff, so out-of-hospital care is only a transport function.
• c.Each link can make up for a weak link earlier in the chain.
• d.Survival depends on every link, so a delay at any one step lowers survival even when the other steps are done well.✓

The metaphor's whole point is dependency: recognition and activation, immediate CPR, rapid defibrillation, advanced resuscitation, post-arrest care and recovery each depend on the ones before, so excellent defibrillation cannot rescue an arrest that went ten minutes without compressions. That is also why later links cannot compensate for earlier failures. The first links belong to bystanders and dispatchers rather than to the hospital, which is why systems invest in bystander CPR training and public access defibrillators.

A patient with an hour of crushing chest pain is gray and clammy, with crackles at both lung bases, a blood pressure of 76/50 and a pulse of 120. He has nitroglycerin prescribed to him and asks for it. Under most EMS protocols the EMT should:

• a.Assist with the nitroglycerin, because relieving the pain will reduce the strain on the failing heart.
• b.Withhold the nitroglycerin, support oxygenation and transport rapidly.✓
• c.Lay him completely flat and raise both legs to bring the blood pressure up first.
• d.Have him chew a second aspirin.

This is cardiogenic shock: the infarcting heart cannot maintain output, which is why the pressure is low and fluid is backing into the lungs. Nitroglycerin protocols set a minimum systolic pressure, commonly around 100 to 110 mmHg, and a pressure of 76 is far below any of them, so the drug is withheld however severe the pain. Raising the legs is the strongest competing answer because it is right for hypovolemic shock, but the problem here is a pump that has already failed to move the blood it has, and adding preload worsens the pulmonary edema.

A 66-year-old has sudden severe chest pain that he describes as tearing and that radiates through to between his shoulder blades. Which additional finding would most suggest an acute aortic dissection rather than a myocardial infarction?

• a.Pain that worsens when he leans forward and eases when he sits still and breathes shallowly.
• b.Nausea, vomiting and heavy sweating with the pain.
• c.Pain radiating into the left jaw.
• d.A large difference in blood pressure between the two arms.✓

A dissection can extend into the origin of a subclavian artery, so the pulse and pressure on one side fall and the arms read very differently, which is why blood pressure is checked in both arms when the description is tearing pain radiating to the back. Nausea and diaphoresis accompany both conditions and cannot separate them, and jaw radiation is the classic pattern of an infarction rather than a dissection. Pain that changes with position and breathing points instead toward pericarditis or a musculoskeletal cause.

During a resuscitation the team leader says, 'Ken, take over compressions at the next rhythm check.' Which response reflects closed-loop communication?

• a.The leader repeats the instruction until someone starts compressions.
• b.Ken nods and moves into position without speaking, so the noise level stays down.
• c.Whoever is closest to the patient calls out 'I've got it' and takes over.
• d.Ken answers, 'Taking compressions at the next check.'✓

Closed-loop communication means the person named repeats the assignment back out loud so the leader knows it was heard, understood and accepted by that specific person. A silent nod is the most tempting alternative because the task does get done, but a leader who is watching the monitor or timing the rhythm check never sees it and cannot confirm the loop is closed. An anonymous volunteer leaves the leader unsure who holds which role, and repeating an order into the noise is an open loop rather than a closed one.