NHA Medical Assistant (CCMA) — All Questions

A medical assistant takes an adult's oral temperature five minutes after the patient finished a cup of hot coffee. What is the effect?

• a.No effect, because the mouth returns to core temperature the moment the cup is put down
• b.The reading falls, because swallowing hot liquid triggers a compensating drop in the mouth
• c.The reading is falsely high, so the measurement should be delayed✓
• d.The reading becomes unusable and only a rectal route can be substituted

A hot or cold drink, smoking and chewing gum all change the temperature of the oral cavity itself, so most references ask for a wait of about fifteen to thirty minutes before an oral reading. Waiting is the fix. A different route is an option when waiting is impossible, but a delay is simpler and an oral reading is not permanently invalidated.

Which relationship between temperature routes is generally taught?

• a.A rectal reading runs about one degree Fahrenheit above an oral reading✓
• b.An axillary reading runs about one degree Fahrenheit above an oral reading, because the skin retains heat
• c.A tympanic reading runs about three degrees Fahrenheit below an oral reading in every adult
• d.All routes give the identical number, so the site never needs to be recorded with the value

Rectal readings run roughly a degree Fahrenheit higher than oral and axillary readings roughly a degree lower, so the route is documented with the value or the number cannot be compared with the next one. Axillary is the lowest of the common routes rather than the highest, and tympanic readings track close to oral rather than three degrees away.

Which pulse rate falls within the normal resting range for a healthy adult?

• a.One hundred and thirty beats per minute, which is normal for any adult who is seated
• b.Forty beats per minute, which is normal in an adult who is not an endurance athlete
• c.One hundred and ten beats per minute, which is the accepted upper limit for adults
• d.Seventy-two beats per minute, which sits inside the usual adult range✓

The usual adult resting range is sixty to one hundred beats per minute, so seventy-two sits comfortably inside it. Below sixty is bradycardia and above one hundred is tachycardia, and either may be normal for a particular person or may be a finding the provider needs, which is why the rate is reported rather than judged by the medical assistant alone.

Why should a pulse be counted for a full sixty seconds when the rhythm is irregular?

• a.Because an irregular pulse is always faster than a regular one and needs longer to settle
• b.Because a fifteen second count multiplied by four magnifies any beat that was missed✓
• c.Because the radial artery cannot be palpated accurately for less than a full minute
• d.Because counting for a minute lets the assistant assess the strength of each individual beat

A short count assumes the beats are evenly spaced. When they are not, a quarter minute sample that happens to catch a pause or a run is multiplied by four and the reported rate can be well away from the true one. A full minute averages the irregularity out. Pulse strength is assessed separately, and the artery is palpable in any interval.

A provider asks for a pulse deficit. How is it obtained?

• a.Take the radial pulse twice, five minutes apart, and subtract the second count from the first
• b.Subtract the diastolic blood pressure from the systolic and report the difference
• c.Count the apical and radial pulses at the same time, with two people, and subtract✓
• d.Count the radial pulse standing and then lying down, and report the difference

Two people count for the same full minute, one at the apex with a stethoscope and one at the wrist, and the radial count is subtracted from the apical. A difference means some heartbeats are too weak to reach the wrist, which happens in atrial fibrillation. The difference between systolic and diastolic pressure is the pulse pressure, a different measurement.

Which artery is palpated to check circulation to the foot?

• a.The popliteal artery, which lies behind the knee and supplies the whole of the lower limb
• b.The femoral artery, palpated in the groin where it is closest to the surface of the skin
• c.The brachial artery, palpated at the inner elbow during a blood pressure measurement
• d.The dorsalis pedis artery, on the top of the foot✓

The dorsalis pedis on the dorsum of the foot and the posterior tibial behind the medial ankle are the two sites used to assess perfusion distal to the ankle, which matters in diabetes and peripheral vascular disease. The popliteal and femoral arteries lie proximal to the foot, and the brachial artery is in the arm.

Which respiratory rate is within the expected range for a resting adult?

• a.Sixteen breaths per minute, comfortably inside the adult resting range✓
• b.Six breaths per minute, which is the normal resting rate for a relaxed adult patient
• c.Thirty-two breaths per minute, which is expected in any adult who is sitting quietly
• d.Forty-four breaths per minute, which is the accepted adult upper limit at rest

Twelve to twenty breaths per minute is the range usually quoted for a resting adult, so sixteen is unremarkable. Six is bradypnea and above twenty is tachypnea, and rates near thirty or forty belong to infants rather than adults. Rate, depth and rhythm are all observed, and the count is taken without telling the patient it is happening.

A blood pressure cuff that is too small for the patient's arm is used. What happens to the reading?

• a.It reads lower than the true pressure, because a small bladder transmits less force
• b.It reads correctly, because the machine compensates for the width of the cuff it detects
• c.It cannot be obtained at all, since the cuff will not inflate against a large upper arm
• d.It reads higher than the true pressure, because a narrow cuff needs more force✓

A narrow cuff needs more pressure to compress the artery, so the numbers come out above the patient's true pressure, and a patient can be labelled hypertensive on the strength of the equipment. A cuff that is too large reads low. The bladder should span roughly eighty percent of the arm's circumference, and the correct size is selected before the first reading.

Where should the patient's arm be positioned during a blood pressure measurement?

• a.Raised above the shoulder, which empties the veins and makes the sounds easier to hear
• b.Supported at heart level, on a table or on the assistant's arm✓
• c.Hanging freely at the side, so no surface can press against the cuff during inflation
• d.Held out by the patient without support, which keeps the muscles relaxed for the reading

An arm below heart level gives a falsely high reading and an arm above it a falsely low one, and an unsupported arm makes the patient work the muscles, which raises the diastolic value. Supporting the arm on a table or the assistant's arm at the level of the heart removes all three problems, and the patient's back and feet are supported too.

How long should a patient sit quietly before a routine office blood pressure is measured?

• a.About five minutes, with the back supported and the feet flat on the floor✓
• b.No wait is needed, because the reading reflects the pressure at that exact moment
• c.About thirty seconds, which is long enough for the arm to settle in the cuff
• d.About thirty minutes, which is the interval most guidelines require before any reading

Around five minutes of quiet sitting, with the back supported, the feet flat and the legs uncrossed, is the standard preparation, and the patient should not be talking during the measurement. Crossed legs and an unsupported back both raise the reading. Half an hour is the interval usually quoted for avoiding caffeine, exercise and smoking, not for sitting still.

Using the adult blood pressure categories in current use, how is a reading of 118/76 mmHg classified?

• a.Elevated, because the systolic value has climbed above one hundred and ten millimetres
• b.Stage 1 hypertension, since the diastolic value has passed seventy-five
• c.Normal, because both the systolic and the diastolic value are below the cut points✓
• d.Hypotension, because the systolic value is below one hundred and twenty

Under the categories in current use, normal is a systolic below one hundred and twenty together with a diastolic below eighty, so this reading is normal on both counts. Elevated means a systolic of one hundred and twenty to one hundred and twenty-nine with a diastolic still below eighty. Nothing about a systolic below one hundred and twenty makes a patient hypotensive.

What is an auscultatory gap, and why does it matter?

• a.A pause between the two heart sounds that shortens the time available for a reading
• b.A silent interval in the Korotkoff sounds that can make the systolic read too low✓
• c.The gap between two consecutive readings, which must be at least ten minutes long
• d.The space left between the lower edge of the cuff and the bend of the elbow

In some patients the Korotkoff sounds disappear for a stretch after the first tapping and then return, and an assistant who begins listening inside that silence records a systolic pressure well below the true one. Palpating the radial pulse to estimate the systolic first, then inflating thirty millimetres above it, avoids the error.

At what rate should the cuff be deflated during a manual blood pressure measurement?

• a.As fast as the valve allows, so the patient's arm spends the least time under pressure
• b.About twenty millimetres of mercury per second, which keeps the whole reading brief
• c.In two steps, releasing half the pressure at the systolic and the rest at the diastolic
• d.About two to three millimetres of mercury per second, released steadily✓

A slow steady release of about two to three millimetres per second gives time to hear the first and last sounds accurately. Deflating quickly makes the systolic read low and the diastolic read high because the sounds are missed, and a very slow release causes venous congestion and discomfort that distorts the reading in the other direction.

A pulse oximeter on a patient's finger reads erratically. Which finding is the most likely explanation?

• a.The patient has just eaten, which changes the oxygen content of the circulating blood
• b.The room lighting is dim, and the sensor needs bright ambient light to read accurately
• c.The finger is cold, or the nail carries dark polish or an artificial nail✓
• d.The probe is on the index finger, and only the middle finger gives a valid reading

The sensor shines light through the tissue, so poor perfusion from a cold hand, dark nail polish, artificial nails and movement all interfere. Warming the hand, removing polish, trying an earlobe or another digit and letting the patient rest usually resolves it. Any well perfused finger will do, food does not change the reading, and bright light interferes rather than helps.

Which pain assessment tool is designed for a young child who cannot use a number scale?

• a.A faces scale, on which the child points to the drawing that matches how they feel✓
• b.The numeric rating scale from zero to ten, explained slowly enough for a child to follow
• c.A verbal descriptor list running from no pain through to the worst pain imaginable
• d.The parent's estimate, which replaces any assessment made with the child directly

A faces scale lets a child who has no concept of a numeric range point to an expression, and it is widely used from around age three. A numeric scale and a verbal descriptor list both assume language and number skills the child does not yet have. A parent's view is useful information but does not replace asking the child.

How is body mass index calculated?

• a.By dividing the patient's height in metres by the weight in kilograms and doubling it
• b.By dividing the weight in kilograms by the square of the height in metres✓
• c.By subtracting the waist measurement in centimetres from the weight in kilograms
• d.By multiplying the weight in pounds by the height in inches and dividing by one hundred

Body mass index is weight in kilograms over height in metres squared, and the office chart or the calculator in the record does the arithmetic. It is a screening figure rather than a diagnosis, because it does not distinguish muscle from fat, and the medical assistant records the measured height and weight rather than the patient's stated ones.

Which measurement is taken with the child lying down rather than standing?

• a.The weight of a two-year-old, which is always measured on an infant scale lying flat
• b.The blood pressure of a two-year-old, which cannot be obtained in a seated child
• c.The head circumference of a two-year-old, which requires the child to be supine
• d.The length of an infant, measured recumbent until the child can stand reliably✓

Length is measured lying down, usually until about age two to three when the child can stand for a stadiometer, and the record notes which was used because the two differ. A toddler who can stand is weighed standing, blood pressure is taken sitting or lying with a correctly sized cuff, and head circumference is measured with a tape in any position.

A child's weight plots on the fortieth percentile of the growth chart. What does that mean?

• a.The child weighs forty percent of what an average child of the same age weighs
• b.The child is forty percent below the weight expected for that age and needs referral
• c.Forty percent of children of the same age and sex weigh less than this child✓
• d.The chart is unreliable at this age, because percentiles apply only after the second birthday

A percentile is a position within a reference population: at the fortieth percentile, forty of every hundred children of that age and sex weigh less and sixty weigh more. It is a normal position on the chart. What matters clinically is the trend across visits, and growth charts are used from birth onward.

A Snellen chart result is recorded as 20/40 in the right eye. What does that mean?

• a.The patient can read at forty feet what a person with normal vision reads at twenty feet
• b.The patient read forty of the letters correctly from a distance of twenty feet away
• c.The patient reads at twenty feet what a person with normal vision reads at forty feet✓
• d.The patient's vision is forty percent of normal in the eye that was being tested

The top number is the testing distance and the bottom number is the distance at which a person with normal acuity could read that same line, so 20/40 means the patient has to be twice as close. A larger bottom number means poorer acuity. The fraction is not a percentage and not a count of letters, and each eye is recorded separately.

Which position places the patient flat on the back with the knees bent and the feet flat on the table?

• a.Dorsal recumbent, which flexes the knees and relaxes the abdominal wall✓
• b.Sims position, which is a left side lying position with the upper knee drawn toward the chest
• c.Prone position, in which the patient lies face down with the head turned to one side
• d.Trendelenburg position, in which the whole table is tilted so the head is below the feet

Dorsal recumbent is supine with the knees flexed and the soles on the table, and it is used for abdominal examination and some genital and rectal procedures because it relaxes the abdominal muscles. Sims is a side lying position, prone is face down and Trendelenburg is a tilt of the whole table.

A provider asks for the patient to be placed in semi-Fowler's position. What does the medical assistant do?

• a.Lower the head of the table below the level of the feet by about thirty degrees
• b.Lay the patient completely flat on the back with a pillow removed from under the head
• c.Turn the patient onto the left side with the right knee drawn up toward the chest
• d.Raise the head of the table to roughly thirty to forty-five degrees✓

Fowler's positions are sitting positions defined by how far the head of the table is raised, with semi-Fowler's usually described as about thirty to forty-five degrees and high Fowler's as nearly upright. They ease breathing and are comfortable for examination of the head and chest. Lowering the head is Trendelenburg and side lying is Sims.

How should a patient using a standard walker move forward?

• a.Push the walker several feet ahead and then walk quickly to catch up with it
• b.Carry the walker in one hand while stepping, then set it down to rest between steps
• c.Move the walker a short distance ahead, then step into it with the weaker leg first✓
• d.Lean the chest onto the walker frame and let it take the whole body weight while walking

The walker is advanced a short way, all four feet are set on the ground, and the patient steps in with the weaker leg and then the stronger one, keeping the frame within reach. Pushing it far ahead removes the support at the moment it is needed, carrying it defeats its purpose, and leaning the chest on it tips it forward.

Which description matches purulent wound drainage?

• a.Thin and clear or straw coloured, which is the drainage expected from a clean healing wound
• b.Thick and opaque, often yellow, green or brown, which suggests infection✓
• c.Bright red and free flowing, which indicates fresh bleeding from a vessel in the wound bed
• d.Pale pink and watery, which is a mixture of clear fluid and a small amount of blood

Purulent drainage is thick, opaque and coloured, and it is the appearance that prompts a report to the provider along with any spreading redness, warmth, swelling, odour or fever. Serous drainage is thin and clear, sanguineous is bright red and serosanguineous is the pale pink mixture of the two.

A provider orders a cold pack for an ankle injured an hour ago. What effect is intended?

• a.Vasoconstriction, which limits the swelling and bleeding into the tissue✓
• b.Vasodilation, which brings extra blood to the area to speed the healing process
• c.Softening of the tissue, which makes the joint easier to move during the examination
• d.A rise in local metabolism, which clears the products of injury out of the joint faster

Cold narrows the vessels, which reduces bleeding, swelling and pain in the first day or so after an injury, and it also slows local metabolism rather than raising it. Heat produces the vasodilation that increases blood flow and is used later for stiffness and chronic pain. A barrier is placed between the pack and the skin and the time is limited.

A patient is asked to collect a first morning urine specimen. Why is that specimen preferred for some tests?

• a.Because urine formed overnight contains no bacteria at all and needs no clean-catch technique
• b.Because the bladder is emptied during sleep, so the morning sample is the freshest available
• c.Because morning urine is warmer, which keeps any cells in it intact until it reaches the laboratory
• d.Because it is the most concentrated of the day, so small quantities are easier to detect✓

Urine that has been in the bladder overnight is the most concentrated of the day, which makes it the best specimen for detecting small amounts of protein, cells, casts or the hormone in a pregnancy test. It is not sterile, so a clean-catch technique still applies when culture or a clean sample is needed.

An adult in the waiting room clutches the throat, cannot speak and is not moving any air. What should the medical assistant do?

• a.Wait and watch
• b.Give abdominal thrusts until the object comes out or the patient becomes unresponsive✓
• c.Reach a finger into the mouth and sweep blindly to hook the object out of the airway and remove it
• d.Give the patient a glass of water so the object can be washed down into the stomach

A complete obstruction in a conscious adult is treated with abdominal thrusts, delivered until the object is expelled or the patient collapses, at which point cardiopulmonary resuscitation is started and emergency services are already on the way. A blind finger sweep can push the object deeper, water cannot pass an obstructed airway, and waiting costs the minutes that matter.

Which technique is used for a choking infant under one year of age?

• a.Standing abdominal thrusts, exactly as they would be delivered to a choking adult patient instead
• b.Chest compressions at the rate used for cardiopulmonary resuscitation of an infant
• c.Five back blows followed by five chest thrusts, repeated while the infant is responsive✓
• d.Holding the infant upside down by the ankles and shaking until the object falls out

An infant is supported face down along the forearm for five back blows between the shoulder blades, then turned face up for five chest thrusts over the lower sternum, and the cycle repeats while the infant is responsive. Abdominal thrusts are avoided in infants because of the risk of organ injury, and shaking an infant by the ankles causes serious harm.

What compression rate is used for adult cardiopulmonary resuscitation?

• a.Around sixty compressions per minute, matching the resting heart rate of an adult
• b.As fast as the rescuer can physically manage, since more compressions move more blood
• c.Around forty compressions per minute, which allows the chest to refill completely
• d.One hundred to one hundred and twenty compressions per minute✓

The rate is one hundred to one hundred and twenty per minute, with a depth of at least two inches in an adult and full recoil of the chest between compressions. Slower rates do not generate enough flow, and pushing faster than the upper limit shortens the filling time so each compression moves less blood. Certification training is required to perform it.

An automated external defibrillator says to stand clear before it analyses the rhythm. Why does that matter?

• a.Contact with the patient can distort the analysis and puts the rescuer at risk of the shock✓
• b.The device needs complete quiet in order to hear the patient's breathing during the analysis phase
• c.Any movement resets the machine, so the pads have to be repositioned from the beginning
• d.The instruction is a formality that most rescuers ignore without any consequence at all

The device reads the electrical rhythm through the pads, and anyone touching the patient adds signal that can lead to a wrong decision, so everyone stands clear during analysis and again before the shock is delivered. It is not a formality; a rescuer in contact when the shock is given receives part of it. The device does not listen for breathing.

A patient becomes pale, cool, clammy and confused with a rapid weak pulse. What should the medical assistant do while help is coming?

• a.Sit the patient upright
• b.Lay the patient flat, keep them warm, and elevate the legs unless injury makes that unsafe✓
• c.Give the patient a large drink of water to replace the fluid that has been lost
• d.Walk the patient slowly around the room so that the circulation is encouraged to recover on its own

Those signs describe shock, and lying flat with the legs raised helps blood reach the brain while a blanket limits further heat loss. Leg elevation is avoided with a suspected head, spine or leg injury or when it worsens breathing. Nothing is given by mouth to a patient who may deteriorate, and walking a patient in shock risks a collapse.

A patient has a generalised seizure in the office. What should the medical assistant do during it?

• a.Place a padded object between the teeth to stop the patient biting the tongue
• b.Hold the arms and legs still so that no furniture nearby can be struck
• c.Move furniture away, protect the head, note the time, and do not restrain the patient✓
• d.Splash cold water on the face to shorten the seizure and bring the patient round faster

Care during a seizure is protective rather than corrective: clear the space, cushion the head, loosen anything tight at the neck, time the event and stay until it ends, then turn the patient onto the side. Restraint causes injury, nothing is placed in the mouth, and cold water does nothing except add to the confusion afterwards.

A patient has a nosebleed in the waiting area. What is the correct first aid?

• a.Tilt the head back so the blood runs backward and the bleeding stops more quickly
• b.Pack the nostril tightly with gauze and leave the packing in place until the next clinic visit
• c.Lie the patient flat with a cold pack on the forehead until the bleeding has stopped
• d.Sit the patient upright leaning forward and pinch the soft part of the nose for ten minutes✓

Sitting up and leaning forward keeps blood out of the throat, and steady pressure on the soft part of the nose, held without peeking for about ten to fifteen minutes, lets a clot form. Tilting the head back sends blood into the stomach and can cause vomiting or choking, lying flat does the same, and packing is a clinician's procedure.

A patient spills a cleaning chemical into one eye. What is the immediate action?

• a.Irrigate the eye with water or saline from the inner corner outward for a prolonged period✓
• b.Cover the eye with a dry sterile pad and send the patient straight to the emergency department
• c.Apply a soothing ophthalmic ointment from the treatment room stock to relieve the burning
• d.Ask the patient to blink rapidly for several minutes so that tears wash the chemical away

Prolonged irrigation, usually at least fifteen to twenty minutes, is what limits the injury, and the flow runs from the inner corner outward so the chemical is not carried into the other eye. The provider is alerted and the product name and the safety data sheet are found while irrigation continues. Covering, ointment and blinking all leave the chemical in place.

A patient with diabetes is shaky, sweating and confused, and can still swallow safely. What is the usual first response?

• a.Give a large protein snack
• b.Have the patient lie down in a dark room until the symptoms settle on their own, without giving anything
• c.Give a long-acting insulin dose from the clinic stock to bring the reading back to normal
• d.Give about fifteen grams of a fast-acting carbohydrate and recheck the glucose in fifteen minutes✓

Those symptoms suggest a low blood glucose, and the usual approach for a conscious patient who can swallow is about fifteen grams of fast-acting carbohydrate, such as glucose tablets or juice, followed by a repeat measurement about fifteen minutes later. Protein acts too slowly, insulin would drive the glucose lower still, and doing nothing lets it fall further.

A caller describes sudden facial drooping, one weak arm and slurred speech that began twenty minutes ago. What does this pattern suggest?

• a.A migraine that should be managed at home with the patient's usual medication and rest
• b.A panic attack that will settle if the caller is coached through slow breathing on the phone
• c.A possible stroke, which needs emergency services now because treatment is time limited✓
• d.A pinched nerve in the neck that can wait for the next available appointment in the clinic

Face, arm and speech changes of sudden onset are the recognised warning signs of stroke, and the time the symptoms began is the fact that decides which treatments remain possible, so the call becomes an emergency call rather than an appointment. Nothing about this pattern fits a migraine, a panic attack or a pinched nerve.

How should a small thermal burn be cooled as first aid?

• a.With ice held directly against the skin until the pain has completely disappeared
• b.With butter or an oil-based ointment, which seals the surface and keeps out the air
• c.With cool running water for a sustained period, then a clean non-adherent dressing✓
• d.With a dry dressing only, since any moisture on a burn increases the risk of infection

Cool running water for a sustained period, commonly quoted as ten to twenty minutes, removes heat from the tissue and limits how deep the injury becomes. Ice causes further tissue damage, and butter or ointment traps heat and has to be removed before the burn can be assessed. Jewellery is taken off early, before swelling begins.

A patient arrives with a deformed forearm after a fall. What should the medical assistant do while waiting for the provider?

• a.Support the arm in the position found, apply cold, and avoid straightening the limb✓
• b.Straighten the arm gently so that the bones return toward their normal alignment
• c.Apply a warm pack to the deformity so the muscles relax before the examination
• d.Ask the patient to move the wrist and fingers repeatedly to check that nothing is broken

A suspected fracture is immobilised as it lies, supported with padding or a sling, with cold applied over a barrier to limit swelling, and the fingers checked for colour, warmth and sensation. Attempting to straighten a deformity can damage vessels and nerves, heat increases swelling, and repeated movement is painful and diagnoses nothing.

How should a patient be instructed to produce a sputum specimen?

• a.Spit saliva into the container
• b.Rinse the mouth with water, then cough deeply from the chest into the sterile container✓
• c.Gargle with an antiseptic mouthwash first so that the specimen is not contaminated by mouth flora
• d.Collect whatever accumulates in the container over the course of the whole following day

Sputum comes from the lower airway, so the patient rinses with plain water to reduce mouth flora, takes several deep breaths and coughs from deep in the chest, usually first thing in the morning. Saliva is rejected. Antiseptic mouthwash can kill the organism being looked for, and an all-day collection at room temperature overgrows.

A wound culture is ordered from an open leg ulcer. Which technique gives the most useful specimen?

• a.Swab the dry skin surrounding the ulcer, where the organism spreads outward from the wound
• b.Swab the crust on the surface, since that is where the infecting organism concentrates
• c.Clean the surrounding skin, then swab the base of the wound without touching the edges✓
• d.Squeeze the ulcer until fluid appears on the skin and collect that fluid on the swab tip

A culture is meant to identify what is growing in the wound, so the swab samples the wound bed after the surrounding skin has been cleaned, avoiding contact with intact skin and crust that carry ordinary flora. Sampling the skin, the crust or fluid squeezed onto the skin returns colonisers and can send the patient home on the wrong antibiotic.

A patient is given a home stool test kit. What should the medical assistant say about diet restrictions?

• a.No test of this kind has any dietary restriction, so the patient may eat normally throughout
• b.Every stool test requires three days without any meat, fruit or vegetable of any kind
• c.The patient should fast completely for twelve hours before each of the three samples
• d.Follow the instructions for that specific kit, since guaiac and immunochemical tests differ✓

Older guaiac based tests commonly ask the patient to avoid red meat, some raw vegetables, vitamin C supplements and certain medications for a few days, while the fecal immunochemical tests in wide use generally need no dietary restriction. Because the requirement depends on the kit, the instructions supplied with it govern, and a blanket rule is wrong either way.

A urine specimen is needed from an infant who is not toilet trained. What is the usual method?

• a.Clean the area and apply a paediatric adhesive collection bag, then check it frequently✓
• b.Wring out the wet diaper into a specimen container once the infant has passed urine
• c.Wait for the infant to void into a clean nappy and send the nappy itself to the laboratory
• d.Ask the parent to hold a cup in position for as long as it takes the infant to pass urine

The perineum is cleaned and dried, an adhesive bag is applied over the urethral opening, and the infant is checked every fifteen minutes or so because a bag left in place too long is uncomfortable and easily contaminated. Diaper material absorbs urine and adds fibres and gel, and neither a wrung out diaper nor a nappy is an acceptable specimen.

What does the teach-back method ask a patient to do at the end of an instruction?

• a.Sign a form confirming it
• b.Explain the instruction back in their own words so gaps can be found and corrected✓
• c.Repeat the instruction word for word so the assistant knows they were listening closely
• d.Take home a printed handout and read it before the next scheduled appointment date

Teach-back tests the explanation rather than the patient: asking someone to say it back in their own words reveals what did not land, and the assistant then re-explains that part and checks again. A signature and a handout record that information was given, and word for word repetition can be done without any understanding at all.

Which instruction sheet is most likely to be understood by a patient with limited health literacy?

• a.One that uses the correct clinical terms throughout, since precision prevents misunderstanding
• b.One that packs the information into dense paragraphs so nothing has to be left out of it
• c.One in plain everyday language with short sentences and the key action stated first✓
• d.One that lists every possible side effect first so the patient can weigh the risks properly

Plain words, short sentences, one idea at a time and the action the patient must take stated up front are what carry across a range of reading abilities, and pictures help. Clinical vocabulary, dense text and a list of every rare side effect ahead of the instruction all obscure what the patient actually has to do.

A patient is taught the three-point crutch gait. Which pattern is correct?

• a.Both crutches and both legs move forward together in a single co-ordinated movement
• b.The right crutch moves with the right leg, then the left crutch with the left leg in turn
• c.The crutches are carried under one arm while the patient hops on the unaffected leg
• d.Both crutches and the affected leg move forward, then the unaffected leg swings through✓

The three-point gait keeps weight off one limb: both crutches and the affected leg advance together as one point, then the stronger leg comes through. The crutch handgrips take the weight rather than the armpits, which is checked before the patient leaves. Moving a crutch with the leg on the same side is a two-point pattern, and hopping is unsafe.

A patient is placed in an arm sling after a shoulder injury. How should the sling sit?

• a.Supporting the forearm with the hand slightly above the elbow and the knot off the spine✓
• b.Holding the arm completely straight down at the side so the shoulder joint is stretched out fully
• c.With the hand hanging lower than the elbow, which lets gravity reduce the swelling
• d.Tied tightly across the front of the throat so the weight is carried by both shoulders

A sling supports the forearm with the hand a little higher than the elbow, which limits swelling in the hand, and the knot is placed to the side of the neck rather than over the spine where it presses. Letting the hand hang low causes swelling, a straight arm gives no support, and a knot across the throat is dangerous.

A patient with a new low-sodium diet asks which change will help most. What is the most useful advice?

• a.Stop adding salt at the table
• b.Read labels on packaged and restaurant foods, which carry most of the sodium people eat✓
• c.Replace all cooking salt with sea salt, which contains far less sodium than table salt does
• d.Drink much more water each day so that the extra sodium is flushed out by the kidneys

Most dietary sodium comes from processed, packaged and restaurant food rather than the salt shaker, so learning to read labels changes more than table habits do. Sea salt is chemically sodium chloride like any other salt. Extra water does not remove a sodium load, and specific dietary counselling belongs to the provider or a dietitian.

Why is passive range of motion performed on a patient who cannot move a limb?

• a.To build muscle strength in the limb so the patient can begin walking again more quickly
• b.To warm the joint before an examination so the provider can assess it more comfortably
• c.To keep the joint mobile and limit the contractures that follow prolonged immobility✓
• d.To measure how much pain the patient can tolerate before the next dose is given

Moving a joint through its range when the patient cannot do it maintains flexibility and slows the shortening of muscles and tendons that turns into a fixed contracture. It is done gently, within a comfortable range, and stopped if it causes pain. Passive movement does not build strength, which requires the patient's own muscle effort.

A patient with severe bleeding from a forearm laceration arrives at the front desk. What is the first action?

• a.Apply a tourniquet above the elbow before anything else is attempted on the wound
• b.Wash the wound thoroughly under running water to see how deep the laceration goes
• c.Apply an antiseptic and a small adhesive dressing while the provider is being located
• d.Apply firm direct pressure with gloved hands and a clean dressing, and call for help✓

Direct pressure over the wound with a dressing, held firmly and continuously with gloves on, controls most external bleeding, and more dressings are added on top rather than lifting the first to look. A tourniquet is reserved for bleeding that direct pressure cannot control, and washing or dressing a heavily bleeding wound delays the one thing that works.

A patient calls having swallowed an unknown quantity of a household cleaner. What should the medical assistant do?

• a.Get the product name and the time, and connect the caller to poison control or emergency services✓
• b.Tell the caller to induce vomiting at once so the chemical leaves the stomach quickly
• c.Advise a large glass of milk, which neutralises any household chemical in the stomach
• d.Book the earliest available appointment and ask the caller to bring the product container along with them

The product, the amount and the time are the facts an expert needs, and the call goes straight to poison control or emergency services rather than into an appointment book. Inducing vomiting is no longer advised and causes further injury with a corrosive, and no household drink reliably neutralises an unknown chemical.

Which observation about a patient's ability to manage at home belongs in the record?

• a.The assistant's impression that the patient's home is probably untidy and poorly organised
• b.That the patient reports being unable to climb the stairs to the bathroom without resting✓
• c.A conclusion that the patient can no longer live alone and needs residential care arranged
• d.A judgement that the family is not doing enough to help the patient at home each day

What the patient reports and what the assistant directly observes belong in the record, in the patient's words where possible, because they are facts another clinician can act on. Impressions about a home nobody has seen, judgements about a family and conclusions about where someone should live are neither observations nor the assistant's to make.