NHA Medical Assistant (CCMA) — All Questions

A rapid lateral flow test shows a line in the test window but no line in the control window. How is the result reported?

• a.As invalid, and the test is repeated with a new device✓
• b.As positive, because a line appeared in the window that reports the presence of the analyte and that is the window the result is read from in every rapid test of this design
• c.As negative, since the control line is the one that indicates a positive result
• d.As positive but weak, with a note that the control line failed to appear this time

The control line proves that the sample flowed and the reagents worked, so without it nothing in the test window can be believed, whatever it shows. The device is discarded, the test repeated with a new one, and a repeated failure is investigated as a lot, storage or technique problem before any result is reported.

What does a hemoglobin A1c result describe?

• a.The patient's blood glucose at the exact moment the specimen was taken from the finger
• b.Average blood glucose over roughly the previous two to three months✓
• c.The amount of insulin the pancreas released during the twenty-four hours before the test, which is why the patient is asked to fast overnight before the specimen is collected
• d.How much glucose the patient absorbed from the meal eaten immediately before the test

Glucose attaches to hemoglobin in proportion to how much is in the blood, and because red cells live about three months the measurement reflects an average over that span, which is why fasting is not required. A single glucose reading captures one moment, and no routine office test measures insulin release or absorption from a meal.

How should instrument packs be arranged inside an autoclave chamber?

• a.Stacked flat and pressed tightly together so the maximum number fits into one cycle
• b.Wrapped in a material that does not let steam through, so the contents stay dry throughout the cycle and can be handled immediately when the chamber door is opened at the end
• c.Placed directly on the chamber floor so they are closest to the source of the steam
• d.Spaced apart and on edge, so steam can circulate freely around every surface✓

Steam sterilises only what it touches, so packs are placed on edge with space between them, the chamber is not overloaded, and the wrap is a material steam can penetrate. Packs are dried before removal because a damp wrap wicks organisms from the outside. Tight stacking and impermeable wrapping both leave the inside of the pack unsterilised.

How are sterile gloves put on without contaminating them?

• a.By pulling both gloves on quickly and then wiping the outside with an alcohol swab
• b.By touching only the folded cuff of the first glove and only the outside of the second✓
• c.By having a colleague hold each glove open so that neither hand touches any part of it, which removes every opportunity for the wearer to contaminate the outer surface
• d.By putting the non-dominant glove on first, since that hand is used less during the procedure

The inside of a glove is the only part a bare hand may touch, so the first glove is picked up by its folded cuff and, once one hand is gloved, the second glove is lifted by sliding the gloved fingers under its cuff so that glove touches only glove. Wiping a contaminated glove does not sterilise it, and which hand goes first is convention rather than a sterility rule.

How is a suture cut and removed so that no contaminated portion passes through the tissue?

• a.Cut through the knot itself and pull both cut ends outward away from the wound line
• b.Cut one side of the suture close to the skin below the knot, then pull toward the wound✓
• c.Grasp the knot and pull the whole suture out without cutting it anywhere along its length, which is faster and spares the patient a second instrument being brought near the wound
• d.Cut both sides of the loop at skin level and lift the remaining portion straight upward

The portion of suture that lay above the skin is contaminated, so the cut is made on one side close to the skin, below the knot, and the suture is drawn out toward the wound so that only the clean subcutaneous portion travels through the tissue. Pulling an uncut suture drags the exposed material through, and cutting the knot leaves nothing to grasp.

How should a soiled dressing be removed and the wound cleaned at a dressing change?

• a.Remove it with gloves, then clean from the wound outward with a fresh swab each stroke✓
• b.Remove it and clean from the surrounding skin inward toward the wound, so that any debris on the skin is carried into the wound bed where the next dressing will absorb it away
• c.Remove it and scrub the whole area in a circular back and forth motion with one swab
• d.Remove it, leave the wound uncovered to dry, and apply the new dressing an hour later

Cleaning moves from the cleanest area outward, and a new swab is used for each stroke so nothing is carried back over the wound. Working inward or scrubbing back and forth with one swab drags skin flora into the wound bed, and leaving a wound uncovered while the room is in use exposes it without any benefit.

A patient is given a nebulised bronchodilator in the office. When is the treatment complete?

• a.After exactly five minutes, whatever volume of medication is left in the chamber
• b.As soon as the patient reports that the wheeze has eased, since the purpose of the treatment has then been achieved and any remaining medication in the chamber can be discarded
• c.When the patient has taken twenty deep breaths through the mouthpiece of the device
• d.When the chamber sputters and no more mist is produced, with the patient breathing steadily✓

The dose is the volume placed in the chamber, so the treatment runs until the chamber sputters and stops misting, with the patient breathing normally and taking an occasional deep breath, and the chamber tapped to bring droplets down. Stopping early or by a clock gives part of the prescribed dose, and a breath count is not how a nebuliser is measured.

Which instruction is given to a patient before a Papanicolaou test?

• a.Take a warm bath immediately beforehand so the examination is more comfortable
• b.Avoid douching, vaginal medication and intercourse for the period the laboratory specifies✓
• c.Fast from midnight, because a full stomach changes the appearance of the cervical cells and makes the specimen harder for the cytology laboratory to interpret accurately
• d.Empty the bladder only after the examination has been completed by the provider

Douching, vaginal creams and intercourse can wash away or obscure the cells the test is meant to sample, so the laboratory sets an interval, commonly around forty-eight hours, and many laboratories also prefer the specimen outside menstruation. The bladder is emptied before the examination for comfort, and the test has nothing to do with eating.

A sterile solution must be poured into a basin on a sterile field. How is it done?

• a.Reach across the field and pour slowly so that no solution splashes onto the drape below
• b.Set the bottle down inside the sterile field first so the container is sterile before pouring, since a bottle standing on the drape can then be handled by anyone wearing sterile gloves
• c.Pour from the side without reaching over the field, holding the bottle above the basin✓
• d.Have the patient hold the basin steady while the solution is poured into it from above

The outside of the bottle is not sterile, so it never enters or crosses the field: the pourer stands to the side, holds the bottle above the basin without touching it and pours steadily. Reaching over a sterile field contaminates it, a bottle placed on the drape contaminates the drape, and a patient never holds part of a sterile setup.

Oxygen is ordered by nasal cannula. Which flow rate is in the usual range for that device?

• a.Fifteen litres per minute, which is the rate a nasal cannula is designed to deliver
• b.Twenty-five litres per minute, matching the flow used with a non-rebreather mask, because the cannula sits inside the nostrils and therefore needs a much higher flow than any mask to achieve the same delivered concentration
• c.Zero point one litres per minute, which is the standard adult starting flow
• d.Two litres per minute, within the low flow range a cannula is intended for✓

A nasal cannula is a low flow device, generally used from about one to six litres per minute, and higher flows dry and irritate the nasal passages without adding much oxygen. Rates in the mid teens belong to a non-rebreather mask. Oxygen is a medication: the flow is what the provider ordered, and it is not adjusted independently.

A patient is prepared for an office procedure requiring a local anaesthetic. What does the medical assistant do with the anaesthetic vial?

• a.Show the label to the provider so the drug, strength and expiry are confirmed before use✓
• b.Draw up the anaesthetic and administer it into the site so the area is numb before the provider comes in and can begin the procedure without waiting for the medication to take effect
• c.Open the vial and pour the contents into a sterile basin on the field for the provider
• d.Store the vial in the refrigerator between patients regardless of what the label states

The assistant presents the vial so the provider can read the label and verify the drug, concentration, expiry and lot, then holds it for the provider to withdraw the dose without contaminating the field. Injecting a local anaesthetic is not within the medical assistant's scope, pouring an injectable into a basin is wrong, and storage follows the label.

Which specimen is used for a rapid group A streptococcus test?

• a.A saliva sample collected in a sterile cup after the patient rinses the mouth with water
• b.A nasal swab taken from just inside one nostril, since the organism colonises the nose first and moves down into the throat over the twenty-four hours before the sore throat begins
• c.A swab rubbed firmly over both tonsils and the posterior pharynx, avoiding the tongue✓
• d.A blood spot collected by fingerstick onto the test device supplied in the kit

The swab has to reach the tonsillar surfaces and the back of the throat where the organism sits, and a gentle swab or one that mostly samples the tongue and cheek returns a false negative. Saliva, nasal swabs and blood spots are not the specimen for this test, and a negative in a child is often confirmed by culture.

What does the physical examination of a urine specimen include?

• a.The protein, glucose and ketone readings taken from the reagent pads on the strip
• b.Colour, clarity and specific gravity✓
• c.The identification of red cells, white cells, casts and crystals seen under the microscope after the specimen has been centrifuged and the sediment resuspended in the remaining fluid
• d.The bacterial colony count reported after overnight incubation of the culture plate

The physical portion covers what can be observed and measured about the specimen itself, colour, clarity and specific gravity, and sometimes volume and odour. The reagent strip results are the chemical portion, and identifying cells, casts and crystals in the spun sediment is the microscopic portion, which is not a waived procedure.

A point of care hemoglobin is performed from a fingerstick. Which technique protects the result?

• a.Squeeze the finger repeatedly so the cuvette fills quickly from a slow puncture site
• b.Use the first drop, which is the most representative of the blood in the circulation because it has been in contact with the tissue for the shortest time before it reaches the device
• c.Warm the finger with an alcohol swab and puncture before the alcohol has evaporated
• d.Wipe away the first drop and fill the cuvette in one motion, without air bubbles✓

The first drop carries tissue fluid and any residual alcohol, and both dilute the sample, so it is wiped away and the cuvette is filled from the second drop in a single continuous fill with no bubbles, since a bubble displaces sample and lowers the reading. Squeezing adds tissue fluid, and puncturing through wet alcohol hemolyzes the drop.

Why is a patient asked to sit for a period after receiving an injection in the office?

• a.To allow the medication to be absorbed before the patient moves the limb that was injected
• b.So the assistant can complete the documentation while the patient is still in the room and available to answer any questions that come up while the entry is being written into the record
• c.To watch for an immediate reaction such as faintness or an allergic response✓
• d.Because insurance requires a minimum visit length before an injection can be billed

The observation period, commonly around fifteen minutes after a vaccine, is there so that syncope or an early allergic reaction happens where staff and emergency equipment are, rather than in a car park. Absorption continues regardless of posture, documentation can be completed either way, and billing does not set clinical observation times.

How should a medical assistant respond when a patient asks what an abnormal point of care result means for them?

• a.Report the value and explain that the provider will interpret it and discuss what happens next✓
• b.Look the reference range up online and explain to the patient which conditions produce a result of that size, so that the patient is informed while waiting for the provider to come in
• c.Say that the result is probably a machine error and that it will be repeated later
• d.Decline to give the number at all, since a patient may not be told a result of any kind

Giving the number is appropriate; interpreting it is not, because a value means different things depending on history, medication and the rest of the picture. Speculating about causes is practising outside the role, calling a real result a machine error is misinformation, and withholding a patient's own result has no basis.

An instrument is dropped on the floor during a minor procedure. What should be done with it?

• a.Wipe it with an alcohol pad and return it to the sterile field so the procedure is not delayed
• b.Set it aside on the counter and continue using the remaining instruments on the tray
• c.Rinse it under running water at the sink and dry it before returning it to the sterile tray, since the floor of a treatment room is cleaned between every patient and carries very little contamination
• d.Remove it from use, and open a replacement onto the field using sterile technique✓

Anything that leaves the sterile field is contaminated and cannot be returned to it by wiping or rinsing, because neither sterilises. The instrument goes for reprocessing and a sterile replacement is opened onto the field. Leaving it on a counter risks it being picked up again, and no floor is clean enough to make the question different.

Which detail must appear on a specimen container sent from the office to a reference laboratory?

• a.The name of the medical assistant who collected it, which is the only required identifier
• b.The diagnosis the provider suspects, so the laboratory knows which result to prioritise on receipt and can telephone the office directly if the finding matches what was suspected
• c.The room number in which the specimen was collected during the patient's visit
• d.Two patient identifiers plus the date, time and source of the specimen✓

The container itself carries two patient identifiers, the collection date and time and, where it matters, the site or source, because the requisition and the container can become separated. The collector's identity is recorded and often required as well, but by itself it identifies nobody. A room number is not an identifier and a diagnosis is not a label.

How is a wound closed with skin adhesive strips different from one closed with sutures?

• a.Adhesive strips are stronger and are used for deep wounds under tension across a joint
• b.Adhesive strips hold the edges of a shallow low-tension wound and are left to lift off✓
• c.Adhesive strips must be removed by a provider using a suture removal kit, because pulling them off at home tears the healing edge apart and reopens a wound that had almost closed over
• d.Adhesive strips are placed along the length of the wound rather than across it

Skin adhesive strips bridge a shallow wound whose edges already meet without tension, applied across the wound at intervals, and they are allowed to loosen and fall off on their own. Sutures are for deeper wounds and wounds under tension. Strips are not stronger than sutures and do not need an instrument to remove.

A patient's finger is cut during a procedure and the specimen is dropped. What comes first?

• a.Salvage the specimen so the test does not have to be repeated on the patient later
• b.Attend to the injury, then deal with the specimen and document what happened✓
• c.Complete the procedure quickly and then attend to the injury once the room is clear, because interrupting a procedure part way through exposes the patient to more risk than a small cut does
• d.Document the incident before anything else so the account is written while it is fresh

A person comes before a specimen: the bleeding is controlled, the injury assessed and, if a needle or blade was involved, the exposure protocol started. Only then is the specimen handled, recollected if necessary, and the whole event documented. Salvaging a dropped specimen first or writing the note first both leave an injury unattended.

An expired box of reagent strips is found in the testing cupboard. What should be done?

• a.Use it until the box is empty, provided a control is run before each patient specimen
• b.Move it to the back of the cupboard so newer stock is reached first while it is still usable
• c.Keep it for staff practice and training, since an expired strip still behaves like a fresh one for teaching purposes and lets new employees learn the technique without wasting current stock
• d.Remove it from the testing area and dispose of it according to the practice's policy✓

An expired reagent may still change colour but the manufacturer no longer guarantees that it changes correctly, so results from it are not defensible whatever the control shows. It leaves the testing area. Rotating stock so the oldest usable box is used first is good practice before the date passes, not after it.

Quality control on a waived analyser is run at the frequency the manufacturer specifies. What else determines when a control is run?

• a.A new lot or shipment of reagent, a repair, or a result that does not fit the patient✓
• b.The number of patients booked into the clinic on that particular day of the week
• c.Whether the previous day's controls were within range, because a passing control carries forward and removes the need to repeat testing until something visibly changes about the instrument
• d.The preference of whichever staff member happens to be operating the device

Controls are repeated whenever something could have changed the measurement: a new reagent lot or shipment, a service visit or relocation, a training gap, and any result that does not match the patient in front of you. Yesterday's passing control says nothing about today, and neither patient volume nor personal preference sets the schedule.