NHA EKG Technician (CET) — All Questions

During a resting 12-lead EKG the patient keeps talking and turning to look at the machine, and the tracing fills with irregular jagged deflections. What should the technician do?

• a.Report the poor tracing to the supervisor and let the nurse repeat it
• b.Accept the tracing and write "patient was moving" across the bottom
• c.Ask the patient to lie still and stay quiet, then record the tracing again✓
• d.Hold the patient's arms down gently against the bed while recording

Talking and turning contract the chest, neck, and shoulder muscles, and their electrical activity lands on the tracing as jagged somatic artifact. Because the recording itself takes only about ten seconds, telling the patient how brief it is and coaching stillness usually solves the problem outright, and a clean repeat costs almost nothing. Handing a movement-degraded tracing to the chart with a note leaves an unreadable study in the record, and handing the whole task upward for a problem the technician can fix at the bedside wastes the patient's and the nurse's time. Physically holding a patient down is outside a technician's scope and adds the muscle tension it is meant to prevent.

The baseline in lead V3 wanders up and down while every other lead sits steady and the patient is breathing quietly. What is the most likely cause and correction?

• a.That electrode is losing contact; apply a fresh one to the site✓
• b.The patient is breathing deeply; coach slow, shallow breathing
• c.The room is cold; cover the patient and warm the room, then rerun
• d.The cable lies on a power cord; separate the two, then rerun

A cause that acts on the patient as a whole, such as respiration or shivering, moves the baseline in many leads at once, so drift confined to a single lead localizes the problem to that one electrode's contact with the skin. Adhesive that is lifting or gel that is drying lets the contact resistance change from moment to moment, and the baseline follows it. Deep breathing would sway the chest leads together and would track the patient's respiratory rate, which is not what is happening here. A cold room produces muscle noise in several leads, and a cable running along a power cord produces a fine fuzzy band rather than a slow wandering baseline.

The chest lead wires hang straight down over the side of the bed, and the tracing shows repeated abrupt baseline shifts. What should the technician do?

• a.Lay the wires along the body with slack so they do not pull✓
• b.Press each chest electrode down harder and record the tracing again
• c.Tape the patient's gown over the wires to hold them against the bed
• d.Replace all six chest electrodes before recording again

Hanging wires put steady traction on the electrode snaps, and every small tug shifts the skin-to-electrode contact and jumps the baseline. Routing the wires along the contour of the patient's body with a little slack, so the cable carries its own weight, removes the traction and the jumps with it. Pressing harder on electrodes that are already stuck does nothing about the pull on them. Taping the gown over the loaded wires still leaves them under tension and can drag the electrodes when the patient shifts, and fresh electrodes would simply be pulled on by the same hanging wires.

A heavily diaphoretic patient's chest electrodes peel off within seconds of being applied. What is the appropriate response?

• a.Add extra conductive gel under each electrode before pressing it on
• b.Hold each electrode down for a full minute so it can set
• c.Record the tracing quickly, before the electrodes have time to lift
• d.Dry the skin, apply fresh electrodes, and secure them with tape✓

Sweat is a fluid layer between the adhesive and the skin, so nothing sticks until the site is dried; the technician pats each site dry, applies new electrodes, and holds them with tape or a wrap for the length of the recording. Many facilities also stock a skin-prep or antiperspirant product for this situation, and technicians should follow local policy on which is used. Extra gel makes the surface wetter still and can let signal bridge between neighboring chest sites. Pressing longer, or racing the recording, does not change the fact that the adhesive has no dry surface to grip.

Before a 12-lead EKG, a patient says that electrode adhesive has previously caused blistering and a spreading rash. What should the technician do?

• a.Apply the usual electrodes and take them off as soon as the tracing prints
• b.Apply the electrodes over a thin gauze square to protect the skin
• c.Report the reaction to the supervisor and use hypoallergenic electrodes✓
• d.Cancel the test and chart the reported reaction using the patient's own words

Blistering and a spreading rash describe a genuine contact allergy, so the technician stops before applying anything, passes the history to the nurse or supervisor so it is documented, and uses the latex-free, low-adhesive electrodes that facilities stock for this purpose. Applying the usual electrodes and removing them quickly still delivers the allergen to the skin and is a foreseeable injury. Gauze between the gel and the skin blocks conduction and produces an unusable tracing. A technician does not cancel a test that has been ordered; documenting the history is necessary but does not by itself get the study done safely.

A technician suspects that an infusion pump plugged in beside the bed is feeding interference into a monitored patient's tracing. What is the appropriate step?

• a.Move the patient cable and lead wires away from the pump and its power cord✓
• b.Unplug the infusion pump briefly to see whether the interference clears
• c.Display a different lead so that the interference is less noticeable
• d.Move the patient to another room and repeat the recording there

Interference from mains-powered equipment couples into the patient cable by proximity, so putting distance between the cable, the device, and the power cord is both the first correction and the safest one, and it usually works within a few inches. An infusion pump is delivering therapy, and interrupting a running infusion to test a theory about artifact is outside a technician's scope. Changing the displayed lead hides the noise without removing it, and the artifact will still be sitting on the recorded tracing. Relocating a patient is disruptive, often impossible, and unnecessary when routing the cable away from the cord solves the same problem.

In a dry room, sharp isolated spikes appear on the tracing each time the technician adjusts the synthetic blanket covering the patient. What is the most likely cause?

• a.Static discharge through the patient✓
• b.Alternating current from the bed's motor unit
• c.Muscle tremor from a patient who feels cold
• d.A lead wire broken inside its insulation

Nylon and other synthetic fabrics build up a charge in dry air, and each movement of the fabric discharges through the patient and the electrodes as a sharp, irregular spike that stops as soon as the fabric stops moving; changing to cotton coverings removes it. Alternating-current interference is a continuous, uniform band of small oscillations rather than isolated spikes tied to one person's hand. A cold, shivering patient produces continuous irregular fuzz across several leads rather than discrete spikes. A wire broken inside its insulation makes one lead flat or grossly erratic, and the disturbance would not be timed to the movement of the covers.

Why does a technician lightly abrade each electrode site with a dry gauze square or the abrasive tab on the electrode?

• a.It warms the site so that the conductive gel spreads more evenly
• b.It sterilizes the site so the electrode cannot introduce infection
• c.It removes dead surface skin, which lowers resistance to the signal✓
• d.It closes the pores so perspiration cannot loosen the electrode

The outer layer of dead skin cells is a poor conductor and is the largest source of resistance between the heart's signal and the electrode, so scrubbing it away with gauze or the abrasive patch on the electrode measurably cleans up the tracing. The abrasion is deliberately light: reddening the skin is enough, and it should stop well short of breaking the skin or drawing blood. Abrading is not a sterilizing step, and skin preparation for a surface EKG is not a sterile procedure. Rubbing does not warm the site in any way that changes gel behavior, and pores cannot be closed by friction.

A technician has replaced the electrodes, prepared the skin again, rerouted the cable, and coached the patient, and the tracing is still too noisy to be read. What should be done?

• a.Record it anyway and mark it as an acceptable study
• b.Reduce the sensitivity until the noisy baseline looks flatter
• c.Print the cleanest attempt and file it without any comment
• d.Tell the supervisor and document what was tried✓

Once the correctable causes have been worked through, the remaining step belongs to someone with more authority: the supervising nurse or supervisor decides whether a limited study is acceptable or whether the test is repeated later, and the record shows what was attempted so the reader knows the disturbance is technical rather than cardiac. Marking a noisy tracing as an acceptable study, or quietly filing the least bad attempt, invites a reader to interpret artifact as pathology. Lowering the sensitivity shrinks the noise and the complexes together, producing a non-standard tracing that is no easier to read.

A 12-lead tracing contains a five-second burst of artifact that occurred as the patient reached for a tissue. What is the appropriate way to handle the record?

• a.Delete the affected seconds from the stored file and print the rest
• b.Annotate the burst on the tracing as a short run of ventricular tachycardia
• c.Leave the burst unmarked so that the reader's judgment is not influenced
• d.Record the tracing again once the patient is settled and note the cause of the burst✓

The remedy for a movement burst is another ten-second acquisition, plus a short factual note of what the patient was doing, which lets the interpreting provider see immediately that the disturbance was mechanical. Deleting seconds from a stored file alters a medical record and hides information that the reader is entitled to. Writing a rhythm name on the tracing is interpretation and outside a technician's scope, and labeling artifact as ventricular tachycardia can set off treatment the patient does not need. Sending the burst through with no comment at all leaves the reader guessing and risks exactly the same misreading.

A patient arrives for a 12-lead EKG wearing a long metal necklace that lies across the chest and metal-framed eyeglasses, and has a stainless steel hip prosthesis. Which is most likely to disturb the tracing?

• a.The necklace, if it touches an electrode or a lead wire✓
• b.The hip prosthesis, since metal in the body conducts
• c.The eyeglass frames, since metal picks up room noise
• d.The prosthesis and necklace equally, both being metal

Metal lying on the skin can bridge across an electrode or drag against a lead wire as the patient breathes and moves, so a necklace draped over the chest is moved aside or removed before the chest electrodes go on. An implanted prosthesis is enclosed in tissue with no connection to the surface or to the cable, and it does not disturb the surface recording. Eyeglass frames sit far from every electrode and from the cable and have no path into the tracing. What matters is not whether metal is present but whether it can contact the recording circuit.

A confused patient repeatedly pulls the telemetry electrodes off, and the monitor alarms for a lost lead each time. What should the technician do?

• a.Tape the patient's hands to the bed rails until the leads stay on
• b.Report the situation to the supervisor for reassessment✓
• c.Silence the alarm and leave the leads off until the next shift
• d.Reapply the electrodes each time and add extra tape over them

Repeatedly pulling at monitoring equipment is a change in the patient's condition and a safety problem, so passing it to the supervising nurse or supervisor gets the patient reassessed and the monitoring plan adjusted. Applying restraints requires an order and is outside a technician's scope. Silencing the alarm and leaving the patient unmonitored removes the only warning the unit has that something is wrong. Simply reapplying and taping harder addresses the tracing but not the reason the patient is pulling, and it can injure fragile skin over repeated attempts.

A tracing shows a rapid, saw-toothed-looking baseline. Which finding points to somatic tremor rather than atrial flutter?

• a.Several leads have a clean, flat baseline✓
• b.The undulations are identical in every lead
• c.The ventricular rate sits near 150 beats per minute
• d.The waves stand out best in leads II, III, and aVF

Atrial activity is generated inside the heart, so flutter waves appear in every lead of the tracing, and a baseline that is completely clean in some leads while others oscillate has to come from muscle underneath particular electrodes. Flutter waves are also identical to one another and continue at a fixed atrial rate of roughly 250 to 350 per minute, often conducting two to one and giving a ventricular rate near 150 beats per minute, whereas tremor oscillations vary in both size and spacing. Because the two can look alike at a glance, the technician settles and supports the limb and repeats the tracing: artifact clears with the repeat and flutter does not.

During a 12-lead recording the two arm leads show fine, irregular baseline noise. The patient's right arm is hanging unsupported over the edge of the table. What should the technician do?

• a.Replace the electrode on that arm and repeat the recording
• b.Ask the patient to hold the arm straight out, away from the table
• c.Rest the arm flat and supported on the table beside the patient✓
• d.Turn on the artifact filter and repeat the recording

An arm that hangs unsupported keeps the shoulder and arm muscles working to hold it up, and that muscle activity is what puts the fine, irregular noise on the limb leads, so laying the arm flat and fully supported lets the muscles relax and the baseline settle. Holding the arm out in the air increases the muscle tension that is generating the noise. The artifact filter smooths the display without removing the cause, and it can blunt real detail such as the height of small waves, so it is not a substitute for correcting the position. Changing the electrode does nothing about the position that is producing the artifact in the first place.

A patient with persistent hiccups is being recorded, and tall, sharp deflections appear on the strip about once every two seconds. What should the technician do?

• a.Mark the deflections on the tracing as premature ventricular complexes
• b.Record a longer strip and note on it that the patient is hiccupping✓
• c.Wait until the hiccups have stopped before recording the tracing
• d.Apply a new set of electrodes and record the tracing over again

Hiccups are sudden diaphragmatic contractions that jolt the chest wall, and each one drops a sharp deflection onto the tracing at the rate of the hiccups rather than at any rate related to the underlying rhythm. A longer sample plus a factual note of the cause lets the interpreting provider match the deflections to the hiccups and separate them from genuine ectopic beats. Naming them premature ventricular beats is both an interpretation and a wrong one. New electrodes cannot exclude an artifact that the patient's own diaphragm is producing, and postponing an ordered study for hiccups that may last hours delays the patient's care.

A rhythm strip is labeled 50 mm/sec, and the QRS complexes on it measure five small boxes wide. What is the QRS duration?

• a.0.10 second, because each small box is 0.02 second at that speed✓
• b.0.20 second, because a small box is 0.04 second on any tracing
• c.0.05 second, because the box count is halved before converting it to time
• d.0.40 second, because a small box covers 0.08 second at that speed

Doubling the paper speed to 50 mm/sec spreads the tracing over twice as much paper, so each small box represents 0.02 second instead of 0.04 second: five boxes times 0.02 second equals 0.10 second, a normal QRS. Reading those same five boxes at 0.04 second each gives 0.20 second and would turn a normal QRS into an apparently wide, abnormal one. Halving the box count first, or treating a small box as 0.08 second, has no basis: changing the speed changes what a box is worth, not how many boxes the complex occupies. The recorded speed is printed on the tracing for exactly this reason.

An interpreting physician receives a 12-lead on which the standardization pulse measures 5 mm tall. What does that tell the physician about the tracing?

• a.The paper speed was lowered to 12.5 mm/sec, which compresses the complexes vertically
• b.It was run at half standard, so recorded amplitudes are half the true voltage✓
• c.The machine's calibration has drifted and the tracing must be repeated before it is read
• d.An artifact filter was applied, which cut the height of the calibration pulse in half

A standardization pulse 5 mm tall means the machine was set to 5 mm/mV, or half standard, so 1 mV produced only 5 mm of deflection instead of the usual 10 mm, and every measured amplitude must be doubled to recover the patient's true voltage. Half standard is a deliberate setting, chosen when complexes are so tall they overlap the channel above, and the pulse is printed precisely so the reader knows which gain was used. Paper speed changes the horizontal scale only and cannot shorten a complex. A machine whose calibration had genuinely drifted would not announce it with a clean, square 5 mm pulse, and filters do not rescale the calibration mark.

Muscle tremor artifact persists on a resting 12-lead after the technician supports the patient's arms and warms the room. The technician considers switching on the machine's artifact filter. What is the concern about relying on that filter?

• a.Filtering can distort the ST segment and reduce amplitude, so its use is noted on the tracing✓
• b.The filter erases the standardization pulse, leaving the reader no record of the settings used
• c.The filter works only at a paper speed of 50 mm/sec, so intervals need recalculating
• d.The filter removes 60-cycle interference only, so it has no effect on tremor artifact

An artifact or muscle filter narrows the frequency range the machine records; that smooths tremor, but it also alters the recorded waveform and can distort the ST segment and blunt QRS amplitude, which matters when the tracing is being read for ischemia. The better first move is to remove the cause at the patient, and when a filter is used the setting is printed or noted so the interpreter knows the tracing was filtered. The 60-cycle filter is a separate setting aimed at alternating-current interference, so a muscle filter does act on tremor. Filtering does not erase the calibration pulse and is independent of the paper speed.

A technician discovers that a 12-lead recorded an hour ago was printed under another patient's name and has already been filed in that patient's chart. What should the technician do?

• a.Cross out the wrong name, write the correct patient's name above it, and initial the change
• b.Pull the tracing from the chart, shred it, and record a new 12-lead on the correct patient
• c.Leave the tracing in place, since the interpreting physician will notice that it does not fit
• d.Report the error to a supervisor and follow the facility's correction policy✓

A tracing that has been filed is part of the medical record, and a technician does not alter it, discard it, or relabel it independently. Reporting the misidentified tracing so the facility's correction procedure can be followed produces a documented correction or addendum, a new tracing on the correct patient, and a trail showing who found the error and when. Crossing out a name and writing over it hides the change and leaves the other patient's chart still carrying a foreign result. Shredding destroys a record that has already been filed. Leaving it alone risks a patient being treated on the basis of someone else's tracing.

A technician has just recorded a resting 12-lead and is about to send it to the ordering provider. Which check must be completed before the tracing leaves the technician?

• a.That the heart rate printed by the machine matches a rate the technician counts by hand from the strip
• b.That the computerized interpretation printed by the machine agrees with the symptoms reported
• c.That patient identifiers, date and time, and technician identification are on the tracing and all 12 leads are legible✓
• d.That the patient has been shown the tracing and told which portions of it look normal before leaving

A tracing is not finished until it is identifiable and readable: full patient identifiers, the date and time of the recording, who recorded it, correct lead labels, all 12 leads present and legible, and a legible standardization mark showing the gain and speed used. Checking the machine-printed rate by hand is sound practice but is not what makes the record valid or attributable. Comparing the computerized statement with the patient's symptoms is interpretation and lies outside the technician's scope. Telling the patient which parts of the tracing look normal is also interpretation, and it is left to the provider even when the tracing appears unremarkable.

What does the transmitter worn by a patient on telemetry monitoring do?

• a.It stores the whole monitoring period in memory for a physician to download once the electrodes come off
• b.It analyzes the rhythm at the bedside and prints a 12-lead tracing whenever an alarm limit is crossed
• c.It delivers a small pacing stimulus if the patient's heart rate falls below the programmed low limit
• d.It converts the signal picked up by the electrodes into a radio signal that a central monitoring station receives and displays✓

Telemetry is live monitoring: the electrodes feed a small battery-powered transmitter the patient carries, and that unit sends the signal by radio to a receiver at a central station where the rhythm is watched continuously and stored there. Holding the entire recording in the device for later download describes a Holter monitor, which is reviewed after the fact rather than watched in real time, and that is the distinction most often missed. The transmitter itself does not analyze rhythms or print 12-leads; the central station displays, stores, and prints, and interpretation belongs to the provider. No telemetry transmitter paces the heart, which requires an implanted or external pacemaker.

Which practice protects a telemetry transmitter and its lead wires from failing during monitoring?

• a.Check the battery at the start of each shift and replace lead wires that are cracked or frayed✓
• b.Wrap the lead wires tightly around the transmitter case between patients so that they do not tangle
• c.Grasp the wire itself rather than the connector when taking a lead off an electrode
• d.Take the battery out whenever the patient leaves the unit so it does not run down

A transmitter is only as good as its power source and its wires, so batteries are checked and changed on the schedule the facility sets, and any wire with cracked insulation, a frayed conductor, or a bent pin is taken out of service because it produces intermittent signal loss and false alarms. Coiling wires tightly around the case stresses the conductor where it enters the housing and is a common cause of failure. Pulling on the wire instead of the connector damages that same junction. Removing the battery leaves the patient unmonitored without any record that monitoring stopped; a planned absence from the unit is handled through the facility's standby procedure instead.

The QRS complexes on a 12-lead are so small that the technician cannot measure their amplitude reliably. Which action addresses this?

• a.Record the tracing at double standard, 20 mm/mV, and note that setting✓
• b.Raise the paper speed to 50 mm/sec so the complexes are drawn taller
• c.Double each measured amplitude by hand and write the corrected values onto the tracing
• d.Record at half standard, 5 mm/mV, so more of each complex fits inside the channel

Low-amplitude complexes are handled at the machine rather than on paper: setting the sensitivity to 20 mm/mV makes 1 mV produce 20 mm of deflection, and the standardization pulse then prints 20 mm tall so the interpreter can see that every amplitude must be halved to recover true voltage. Paper speed changes only the horizontal scale, so running at 50 mm/sec spreads the complexes out without adding any height. Half standard shrinks them further, which is the opposite of what is needed. Writing corrected numbers onto the tracing alters a record the technician may not change, and it is unnecessary once the gain is documented by the calibration pulse.

A monitored patient is going off the unit for an approved test, and the nurse asks the technician to place that bed in standby on the central monitor. What must the technician keep in mind about standby on most monitoring systems?

• a.Standby keeps recording the patient's rhythm in the background and stores it for review after the return
• b.Standby automatically widens the alarm limits until the patient is back on the unit
• c.Alarms and monitoring are suspended, so the bed is taken off standby as soon as the patient returns✓
• d.Standby routes the patient's rhythm to the monitor in the department receiving the patient

Standby is a documented pause: on most systems it suspends the display, the alarms, and the recording for that bed so a patient who is legitimately off the unit does not generate a stream of false alarms. Because nothing is being watched during the pause, the bed has to be returned to active monitoring the moment the patient is back, and the time the pause started and ended is documented. Assuming the system keeps recording in the background is what leaves a patient unmonitored for hours after a return no one noticed. Standby does not adjust alarm limits, and it does not follow the patient to another department's monitor.

The central monitoring station alarms for asystole on a telemetry patient. What should happen first?

• a.Silence the alarm and watch the next several complexes to see whether the rhythm comes back
• b.Print a strip of the event and enter it in the monitoring log before anyone leaves the station
• c.Someone goes to the patient's bedside and checks the patient at once✓
• d.Notify your supervisor and wait for direction before anyone approaches the patient's room

Asystole on a monitor is treated as real until the patient shows otherwise, so the first action is to get eyes on the patient: a loose electrode, a detached lead wire, or a dead transmitter battery produces a flat line on a wide-awake patient, and only looking at the patient separates that from an arrest. Silencing the alarm and waiting for the rhythm to return spends the minutes that decide the outcome when the event is genuine, and alarms are not disabled or set outside safe limits to keep a station quiet. Printing and logging the event is required, but it follows the patient check. Escalating and waiting outside the room delays an assessment anyone at the bedside can make immediately, and notification happens alongside the response rather than in place of it.

A technician is cleaning an EKG machine and its patient cables between patients. Which practice is correct?

• a.Soak the cables in a basin of disinfectant so the solution reaches the connector pins and clips
• b.Rinse the cables under warm running water and dry them with a towel before storing the machine
• c.Disinfect the machine surfaces only when the patient tested is known to carry a resistant organism
• d.Wipe the cables and machine surfaces with a facility-approved disinfectant, observe the label's contact time, and let them dry✓

Cables, lead wires, and the surfaces a patient contacts are wiped between patients with a disinfectant approved for that device, kept wet for the contact time printed on the product label, and allowed to dry, which is what actually kills organisms without destroying the equipment. Immersing a cable or running it under water drives fluid into the connector and corrodes the pins, and the damage surfaces later as intermittent artifact or a dead lead. Cleaning only after a patient known to carry a resistant organism ignores every colonized patient nobody has identified. The manufacturer's instructions govern which product may be used, since some solutions degrade cable insulation.

A billing clerk asks an EKG technician to send a patient's entire inpatient chart so that a claim for one 12-lead can be processed. Applying the HIPAA minimum necessary standard, what should the technician do?

• a.Send the whole chart, because billing staff are workforce members with access
• b.Send nothing until the patient signs an authorization in writing
• c.Release only the order, the tracing, and the data needed to bill it✓
• d.Refuse the request, because billing disclosures need a court order

The minimum necessary standard limits any use or disclosure to the information actually needed for the purpose at hand, and billing one 12-lead needs the order, the tracing, and the demographic and coverage data rather than the full chart. Disclosures for payment are permitted without a signed authorization, so waiting for the patient's signature would stall a legitimate claim, and no court order is involved in routine billing. Being a workforce member does not entitle a clerk to everything in a record; access is limited by role and by purpose. The recognized exception to minimum necessary is a disclosure to another provider for treatment, which this request is not.

A technician steps away from the EKG cart to fetch a stretcher and leaves a completed tracing with the patient's name displayed on the cart screen in a hallway. What is the correct assessment of this situation?

• a.It is acceptable because the hallway lies inside a restricted clinical unit
• b.Leaving readable patient data unattended defeats the required safeguards✓
• c.It is a concern only if someone without access reads the screen
• d.It falls outside privacy rules because the tracing was not yet printed

Patient data displayed on an unattended screen is protected health information sitting in the open, and the safeguard requirements cover workstation and device security regardless of whether anyone is caught reading it. The screen should be cleared or locked, or the cart kept attended. A restricted unit still has visitors, transport staff, and other patients moving through it, so the location does not remove the exposure. Waiting for proof that someone read the display makes the safeguard meaningless, and an on-screen tracing is patient data whether or not paper has come out of the machine.

A patient's adult son stops the technician in the corridor and asks how his mother's EKG turned out. The mother has not agreed to have her information shared with him. What should the technician do?

• a.Give him a general summary, since immediate family may receive results
• b.Answer once he produces identification showing that he is her son
• c.Explain that results come from her provider and direct him there✓
• d.Tell him only whether the tracing was normal or abnormal today

Two separate rules point the same way here: the technician does not interpret a tracing for anyone, and the mother has not agreed to sharing, so the son is directed to the provider who ordered the study. Being immediate family creates no automatic right to a result; disclosure to a relative involved in care depends on the patient's agreement or, when she is unavailable, on professional judgment by the treating staff. Identification proves who a person is, not that the patient wants him told. Saying only whether the tracing was normal or abnormal is still both a disclosure and an interpretation.

Midway through acquiring a 12-lead, a patient says she has changed her mind and wants the technician to stop. The electrodes are still attached and the recording is not complete. What should the technician do?

• a.Finish the few remaining seconds, because stopping now wastes the study
• b.Explain that the consent she gave at the start covers the whole procedure
• c.Notify the supervisor before continuing so the order is not left undone
• d.Stop at once, remove the electrodes, and document that consent was withdrawn✓

Consent may be withdrawn at any point, and continuing to touch a patient who has told the technician to stop is battery no matter how little of the tracing remains. The correct sequence is to stop, remove the electrodes, tell the patient what happens next, and document the withdrawal and the notification of the ordering provider. Treating the initial agreement as covering the rest of the procedure misstates how consent works. Escalating the question first is wrong here because it leaves the technician working on a patient who has already refused; the stopping cannot wait for anyone else's decision.

A charge nurse asks an EKG technician to pull a patient's femoral sheath after a cardiac catheterization, a task the technician has had no training in performing. What should the technician do?

• a.Carry out the task, because a licensed nurse has delegated it
• b.Carry out the task while the nurse watches and corrects any error
• c.Read the facility procedure and attempt the removal once carefully
• d.Decline, state that the task is outside her training, and tell the supervisor✓

A delegated task is accepted only when it falls within the technician's scope and the technician is trained and competent to perform it; delegation by a licensed person does not transfer competence. Declining and routing the request through the supervisor gets the patient a qualified caregiver and puts the staffing gap where it can be fixed. Performing an untrained invasive task under observation is still performing it, and a bleeding femoral site leaves no time to correct an error. Reading a written procedure is not training, and a first attempt learned from a manual is exactly the conduct that falls below the standard of care.

While placing chest electrodes on an older adult outpatient, a technician sees patterned bruises in several stages of healing, and the relative who brought her answers every question directed to the patient. What should the technician do?

• a.Ask the relative how the bruises happened before recording it in the chart
• b.Chart nothing about the bruises, since a technician cannot substantiate abuse
• c.Photograph the bruises with the department camera for the record
• d.Document the objective findings and report the concern to the supervisor✓

Health care workers in most states are mandated reporters of suspected abuse of an older adult, and the threshold is reasonable suspicion, not proof. Recording exactly what was seen, in neutral descriptive terms, and routing the concern up the chain of command starts the process the facility and the state require. Questioning the accompanying relative can alert a possible abuser and put the patient at greater risk. Declining to chart the finding destroys the only contemporaneous record of it, and photographs of injuries are taken only under a specific facility or forensic protocol, not by a technician on her own initiative.

A technician posts an image of an unusual rhythm strip to a closed social media group for cardiac technicians, having cropped away the name field and the date. What is the problem with the post?

• a.There is no problem, because the identifiers were cropped out of the image
• b.The post is acceptable only if the group is limited to health care workers
• c.The tracing is still patient information, and posting it discloses it without authorization✓
• d.The post becomes a violation only when a member of the group recognizes the patient

A tracing is information created about an identifiable individual, and cropping the visible name field does not by itself de-identify it, because the date, the device, the setting, and the clinical detail can still point back to one person. Sharing it outside the facility for a purpose other than treatment, payment, or operations requires the patient's written authorization. A closed group is still an audience with no treatment relationship to the patient, so limiting membership to clinicians does not create permission. Waiting until someone recognizes the patient misstates the rule, since the disclosure is complete at the moment of posting.

An EKG technician notices that a coworker on the same shift smells of alcohol and is slurring words while connecting a patient's lead wires. What should the technician do?

• a.Report the observation to the supervisor now✓
• b.Wait until the shift ends and ask the coworker
• c.Finish the tracing and speak with him privately
• d.Note the concern in the patient's chart instead

An apparently impaired coworker is an immediate patient-safety problem, and every facility routes that concern up the chain of command at once so the coworker can be removed from patient care and evaluated. Waiting until the end of the shift leaves an impaired worker on patients for hours. A private conversation is a reasonable instinct for a minor performance issue but not for suspected impairment, where the technician has no way to assess fitness and no authority to remove anyone from duty. The patient's chart is a record of that patient's care, so a note about staff conduct does not belong in it.

A staff nurse looks at a tracing the technician has just acquired and asks whether it looks like a heart block. What is the appropriate response for the technician?

• a.Offer an opinion, since a nurse and not the patient is asking the question
• b.State that the machine's printed interpretation is the official reading
• c.Decline to comment and say nothing further about the tracing
• d.Describe what was observed and note that a provider must interpret it✓

Reporting objective observations is part of the technician's job: the measured rate, whether the rhythm is regular, and what the machine printed are all facts that can be handed to the nurse. Attaching a diagnosis to them is not, whoever is asking, because interpretation belongs to the physician or other qualified provider. The computer statement on the printout is explicitly unconfirmed until a physician reads and signs the tracing, so calling it official is wrong and can propagate an error. Refusing to say anything at all overcorrects and withholds information the nurse legitimately needs to prioritize care.

An outpatient asks the technician for a copy of the tracing that was just recorded, saying she wants it for a second opinion elsewhere. What should the technician do?

• a.Explain that patients receive the physician's report rather than raw tracings
• b.Tell her she has a right of access and send her to health information management✓
• c.Print a second copy and hand it to her after checking her wristband
• d.Ask the supervisor to release the tracing at the end of the visit

A patient has a right of access to her own designated record set, and the tracing is part of it, so the answer is not refusal but referral to the department that verifies identity, logs the request, and releases the record within the required time. Telling her that only the physician's report may be released misstates that right. Handing over a copy at the machine skips the verification and the accounting that the records process exists to provide, even though the wristband was checked. Routing the request to the supervisor is unnecessary and simply delays a request the records department handles as a matter of routine.

A nurse asks an EKG technician to run a 12-lead on an alert, stable patient because the patient looks unwell, but no order for the tracing has been entered. What should the technician do?

• a.Perform the tracing, since a nurse's verbal request functions as an order
• b.Perform the tracing and have the order entered into the chart afterward
• c.Explain that an order is required and notify the supervisor of the nurse's concern✓
• d.Refuse and tell the nurse to have the provider come to the bedside first

A diagnostic test is performed on a provider's order, and a technician working without one has acted outside the scope of the job and left the study unbillable and unowned. Explaining the requirement and passing the clinical concern up the chain gets the order entered quickly while keeping the patient's deterioration visible to someone who can act on it. Treating a nurse's request as an order confuses a request with authorization; a nurse may take a verbal order from a provider, but the technician has no such order here. Performing the tracing and back-filling the order documents an event that did not happen in the sequence charted. Simply refusing and walking away drops a stated clinical concern about a patient.

A scheduled outpatient walks into the EKG room, sits down, and begins unbuttoning her shirt as the technician explains the test. Which form of consent does her behavior represent?

• a.Informed consent, because the procedure was explained first
• b.Implied consent, shown by her cooperation✓
• c.Written consent, satisfied by the registration paperwork
• d.Expressed consent, given when she booked the appointment

Consent inferred from a patient's cooperative conduct is implied consent, and it is what a routine noninvasive 12-lead relies on. Informed consent is a documented discussion of risks, benefits, and alternatives conducted by the provider performing an invasive or higher-risk procedure, so explaining the steps of a tracing does not convert this into informed consent. General registration paperwork is a consent to treat and is not the specific written consent form used for a procedure. Expressed consent is a spoken or written statement of agreement, and booking an appointment is not that statement.

A technician discovers that a comment she entered in the electronic record an hour earlier lists the wrong room number. How should the entry be corrected?

• a.Delete the entry from the record and re-enter the information correctly
• b.Ask the supervisor to have the records office remove it
• c.Use the amendment function so the original entry remains visible✓
• d.Leave the entry and note the mistake in the next shift note

An electronic record is corrected through the system's amendment or addendum function, which stores the new text alongside the original and stamps who changed what and when. Deleting the entry destroys part of a legal record and shows up in the audit trail as exactly that. Routing a routine self-caught error to the records office through the supervisor is neither necessary nor how correction rights work, since the author corrects her own entry. Leaving the error uncorrected and mentioning it elsewhere leaves the wrong information in the place where the next reader will look.

An employer telephones the clinic and asks for the result of a pre-employment EKG that one of its applicants completed there. What is required before the result may be released?

• a.The general consent to treat that the patient signed at registration
• b.A verbal agreement from the patient documented in the record
• c.Nothing, because the employer paid for the test
• d.A signed HIPAA authorization that names the employer✓

Releasing results to an employer is a disclosure outside treatment, payment, and health care operations, so it requires the patient's signed authorization identifying who may receive the information and what may be sent. A consent to treat permits care to be given; it does not permit disclosure to an outside party. A verbal agreement noted in the chart does not meet the written-authorization requirement, however well documented. Paying for a test buys the service, not the result, and the fact that the employer arranged and funded the examination gives it no independent right of access.

After a busy morning a technician realizes that a tracing she recorded an hour ago was saved under a different patient's name, and the record has already gone to the reading physician. What should the technician do?

• a.Report the error to the supervisor at once✓
• b.Wait and see whether the physician catches it
• c.Correct the name in the system and say nothing
• d.Note it on both charts at the end of the shift

A tracing filed under the wrong name puts one patient's data in front of a physician who will act on it for someone else, which is both a misidentification event and a disclosure, so it is escalated immediately rather than handled quietly. Prompt reporting lets the department pull the record from the reading queue before an interpretation is signed. Waiting for the physician to notice leaves a wrong result in an active chart. Fixing the name without telling anyone hides an event the facility has to track and may leave the mistaken interpretation in place, and holding the correction until the end of the shift gives the error hours to travel.

A patient's forearm is scraped by the EKG cart during transport, and an incident report is completed. What is the correct handling of that report?

• a.It is filed separately from the medical record✓
• b.It substitutes for charting the injury in the record
• c.It is scanned into the patient's chart as an addendum
• d.It is released to the patient with her other records

An incident report is an internal risk-management document, kept outside the medical record and outside what is released to the patient, which is why the chart must separately document the injury, the assessment, and the care given. Filing the report in the chart, or even referencing it there, can pull it into the released record and defeat the protection it carries in many states. Treating the report as a substitute for charting leaves the patient's own record silent about an injury that happened during care. The report is likewise not part of the designated record set a patient may request.

A technician forgets to chart a tracing performed at the end of her shift and returns the next morning to document it. What is the correct way to make that entry?

• a.Label it a late entry with the time of the tracing and of the entry✓
• b.Insert the note into the blank space left in the previous day's charting
• c.Chart it with the current date and time and no further comment
• d.Have the coworker now on duty enter it so the timing looks right

Documentation made after the fact is charted as a late entry, identified as such, carrying the date and time the care was actually delivered as well as the date and time of the entry. Writing it into blank space in the prior day's notes makes the record appear contemporaneous when it is not, which is falsification. Charting it under the current time alone puts the tracing on the wrong day and misrepresents the sequence of care. Asking another person to record work she did not perform is charting for someone else, which no facility permits.

A patient scheduled for a 12-lead speaks only Mandarin, and her teenage daughter offers to translate the technician's instructions. What should the technician do?

• a.Use the facility's qualified medical interpreter rather than the daughter✓
• b.Accept the daughter's help, because she knows her mother's history
• c.Ask the supervisor to move the tracing to an interpreter day
• d.Use gestures to demonstrate each step and proceed without help

Facilities receiving federal funds must provide language assistance at no cost to the patient, and qualified interpreters, including telephone and video services, exist for exactly this situation. Using a family member, particularly a minor, risks omitted or softened information and hands a child responsibility for a parent's medical communication. Rescheduling denies a patient timely care that an interpreter line could support within minutes. Gesturing through the procedure leaves the patient unable to ask a question, report discomfort, or meaningfully agree to what is being done.

A patient with moderate dementia becomes agitated and pushes the technician's hand away when chest electrode placement begins. Which approach is most appropriate?

• a.Work faster so the tracing is finished before the agitation increases
• b.Ask a family member to hold her arms still during the recording
• c.Explain each of the ten electrode positions in careful detail
• d.Approach calmly, use short simple sentences, and repeat them as needed✓

A patient with dementia processes speech slowly and reacts to tone and pace, so a calm approach, brief concrete sentences, one instruction at a time, and patient repetition are what allow the tracing to be obtained. Speeding up increases the agitation the technician is trying to avoid and raises the odds of motion artifact and a repeated study. Having a relative restrain her arms is physical restraint applied without an order and is not an acceptable way to complete a routine test. A detailed anatomical explanation adds information the patient cannot hold and tends to deepen the confusion.

A patient appears embarrassed when told that her chest must be exposed for the precordial leads. Which action best respects her modesty without compromising the tracing?

• a.Drape a gown or sheet over the chest between electrode placements✓
• b.Place the chest electrodes over the gown to avoid uncovering her
• c.Record the tracing with the curtain open so that a witness can observe
• d.Omit the two chest leads that call for the greatest exposure

Exposing only the small area being worked on and re-covering it as each electrode is placed protects modesty while still giving the skin contact the tracing depends on. Electrodes applied over clothing do not conduct and produce an unusable recording. Privacy is preserved by closing the curtain or door and limiting who is in the room, so recording in the open for the sake of a witness trades one problem for another; a chaperone can be present behind a closed curtain. Leaving out chest leads yields an incomplete study, and the missing leads are the ones that show the lateral wall.

A technician is about to record a routine 12-lead on a patient whose skin is intact, who has no drainage, and who is on no isolation precautions. Which statement describes correct glove use under standard precautions?

• a.Gloves are a matter of judgment for this contact, but hand hygiene before and after is not✓
• b.Gloves are worn for the entire study, and hand hygiene may be deferred while they are in place
• c.Gloves are put on only after the electrodes are placed and the lead wires have been attached
• d.Gloves are indicated here only if the chart documents a diagnosed bloodborne infection

Standard precautions call for gloves whenever contact with blood, body fluids, mucous membranes, or non-intact skin is anticipated. Placing electrodes on clean, intact skin does not meet that trigger, so glove use follows judgment and facility policy, while hand hygiene before and after every patient contact is required regardless. Gloves are not a substitute for hand hygiene, because hands can be contaminated through unseen defects and during removal. Waiting for a documented infection misreads standard precautions, which treat every patient's blood and body fluids as potentially infectious, and delaying gloves until after the leads are on would place them on after the contaminating contact has already happened.

A patient on contact precautions for Clostridioides difficile needs a bedside 12-lead. How should the technician handle equipment and hand hygiene for this study?

• a.Wear a gown and gloves, and use an alcohol-based hand rub after removing them as in other isolation rooms
• b.Leave the machine out in the corridor and run the lead wires in through the doorway to the bedside
• c.Bring the usual cart in, wear gloves, and then wipe the lead wires with an alcohol pad on the way out
• d.Take in only what is needed, use single-patient-use electrodes, wipe the machine with a bleach wipe, and wash with soap and water✓

C. difficile forms spores that alcohol does not kill and that alcohol-based rubs do not remove well, so hands are washed with soap and water and surfaces are wiped with an EPA-registered sporicidal product such as the facility's bleach wipe. Gown and gloves are correct for contact precautions, which is why the alcohol-rub answer is the tempting one, but the hand hygiene agent and the disinfectant are what change for spores. Carrying only necessary items into the room and using single-patient-use electrodes limits what has to be disinfected afterward. Running lead wires through a doorway does not keep the wires clean and breaks the containment the precautions exist to maintain.

A patient arriving for a treadmill stress test tells the technician that he has had chest pressure since early that morning and that it has not gone away. What should the technician do?

• a.Begin at the lowest workload and stop the treadmill if the pressure gets any worse during the first stage
• b.Hold the test, report the ongoing chest pressure to the supervisor and the covering clinician, and let them decide whether it proceeds✓
• c.Record a resting 12-lead, let the patient sit quietly, and start the protocol once the pressure has eased
• d.Note the reported pressure on the test worksheet and continue with the usual skin preparation

Chest pressure that is present at rest and ongoing raises the question of an acute coronary syndrome, which is a contraindication to exercise testing until a clinician has evaluated it. The technician does not diagnose the pain and does not decide whether the study is safe, so the finding goes to the supervising physician or nurse before anything else happens. Starting at a low workload still exercises a patient whose symptoms may reflect unstable ischemia. Waiting for the pressure to ease or simply writing it on the worksheet leaves the decision with the person least qualified to make it.

While a patient is connected to a portable EKG machine, the technician feels a faint tingle on touching the machine's metal frame. What is the correct response?

• a.Stop the study, unplug the machine, and tell the supervisor about the tingle✓
• b.Finish the tracing quickly, then set the machine on a rubber mat before the next study
• c.Unplug the machine, finish the recording on battery power, and then return it to storage
• d.Keep recording without touching the frame and enter the tingle in the equipment log at shift end

A tingle from a chassis means current is leaking to surfaces that should be at ground potential, which points to a failed ground or damaged insulation. A patient wired to that machine is in the current path and cannot pull away, so the study stops, the machine comes off the line, and it is reported so biomedical engineering can test it. Switching to battery power may remove the mains fault path, but it keeps a machine with a known defect wired to a patient and then puts it back on the shelf untested, and a rubber mat under the machine does nothing about the chassis the technician is touching. Logging the problem at the end of the shift leaves a defective machine available for the next patient.