Clinical Medical Assistant Certification — Complete Practice Exam with
Answers & Rationales
Clinical Procedures • Specimen Collection & Lab • Infection Control • Pharmacology • Terminology &
A&P • Emergencies • Law & Ethics • Patient Care • Administrative • Professionalism
Section 1: Brief Introduction
The AMCA Clinical Medical Assistant Certification (CMAC) examination verifies competency
across the clinical and administrative duties of the medical assistant: vital signs and clinical
procedures, specimen collection and CLIA-waived laboratory testing, infection control and
OSHA compliance, pharmacology and medication administration with dosage calculations,
medical terminology and anatomy & physiology, emergency response, medical law and
ethics including HIPAA, patient communication and education, administrative procedures,
and professionalism. Each question below is immediately followed by its correct answer
(bold, cyan) and a rationale grounded in current clinical medical assisting standards.
Section 2: The Complete Exam
1. Normal oral temperature for a healthy adult is approximately:
A. 90.0°F (32.2°C)
B. 98.6°F (37.0°C), with a normal range of about 97.6-99.6°F
C. 95.0°F (35.0°C)
D. 101.5°F (38.6°C)
Rationale: Average oral temperature is 98.6°F (37°C); rectal and temporal readings run
about 1°F higher, axillary about 1°F lower. Temperatures at or above 100.4°F (38°C)
generally indicate fever.
2. The normal adult resting pulse rate range is:
A. 60-100 beats per minute
B. 110-140 beats per minute
C. 30-50 beats per minute
D. 150-180 beats per minute
Rationale: Adult resting heart rate normally falls between 60-100 bpm; below 60 is
bradycardia and above 100 is tachycardia. Well-conditioned athletes may normally run
lower—context matters when reporting.
3. The most common site for counting an adult pulse during routine vital signs is the:
, A. Popliteal artery behind the knee
B. Dorsalis pedis artery on the foot
C. Temporal artery only
D. Radial artery at the thumb side of the wrist
Rationale: The radial pulse is easily accessible and standard for routine measurement,
counted for 30 seconds ×2 (or a full 60 seconds if irregular). Apical pulse (stethoscope at the
heart apex) is used for infants and irregular rhythms.
4. Normal adult respiratory rate at rest is:
A. 4-8 breaths per minute
B. 40-60 breaths per minute
C. 24-32 breaths per minute
D. 12-20 breaths per minute
Rationale: Adults normally breathe 12-20 times per minute at rest; count discreetly (while
appearing to take the pulse) so the patient doesn't consciously alter breathing. Rates of 40-60
are normal for newborns, not adults.
5. When measuring blood pressure, using a cuff that is too small for the patient's arm will
produce:
A. A falsely HIGH reading
B. Only diastolic changes downward
C. A falsely low reading
D. No effect on accuracy
Rationale: An undersized cuff requires excess pressure to compress the artery, falsely
elevating readings; oversized cuffs read falsely low. The bladder should encircle about 80% of
the arm circumference—proper sizing is a top accuracy factor.
6. According to current guidelines, a blood pressure of 132/84 mmHg in an adult is
classified as:
A. Hypertensive crisis
B. Stage 1 hypertension (systolic 130-139 or diastolic 80-89)
C. Elevated only
D. Normal
Rationale: ACC/AHA categories: Normal <120/<80; Elevated 120-129/<80; Stage 1 HTN
130-139 or 80-89; Stage 2 ≥140 or ≥90; crisis >180/>120. 132/84 meets Stage 1 criteria on
both numbers.
7. Korotkoff sounds heard during manual blood pressure measurement represent:
, A. Lung sounds transmitted to the arm
B. Equipment malfunction
C. The sounds of blood flow returning through the compressed brachial
artery—first sound is systolic, disappearance of sound is diastolic
D. Stomach rumbling
Rationale: As cuff pressure falls, turbulent arterial flow creates Korotkoff sounds: phase I
onset marks systolic pressure and phase V (silence) marks diastolic. Deflation at 2-3 mmHg
per second allows accurate identification.
8. Orthostatic (postural) vital signs are measured by:
A. Taking BP and pulse with the patient lying, then sitting/standing after
position changes—a systolic drop of 20 mmHg or more (or diastolic 10 mmHg)
suggests orthostatic hypotension
B. Taking BP on both ankles simultaneously
C. Averaging three seated readings
D. Measuring only while running
Rationale: Orthostatic measurement detects volume depletion and medication effects: obtain
supine values, then repeat after standing (commonly at 1 and 3 minutes). Significant drops
with symptoms (dizziness) are reported—fall risk is the concern.
9. Pulse oximetry measures:
A. Blood pressure digitally
B. Blood glucose levels
C. Carbon dioxide exhalation only
D. The percentage of hemoglobin saturated with oxygen (SpO2), normally about
95-100% on room air
Rationale: SpO2 estimates arterial oxygen saturation via light absorption through a capillary
bed; readings below ~95% (or the patient's baseline) warrant attention. Nail polish, poor
perfusion, and movement cause artifacts.
10. Proper patient positioning for a routine abdominal examination is:
A. Standing at attention
B. Trendelenburg at steep angle
C. Supine (horizontal recumbent) with knees slightly flexed to relax abdominal
muscles
D. Prone with arms overhead
Rationale: Supine with knee support relaxes the abdominal wall for palpation. Prone is for
back/spine exams; lithotomy for pelvic exams; Sims for rectal procedures; Fowler positions for
respiratory comfort—matching position to exam is basic clinical assisting.
, 11. The lithotomy position is used for:
A. Ear irrigation
B. Blood pressure checks
C. Pelvic examinations and Pap tests—patient supine with feet in stirrups
D. Neurological reflex testing only
Rationale: Lithotomy provides pelvic access for gynecologic exams; MAs prepare, drape for
privacy, and assist patients safely into and out of position. Draping preserves dignity while
exposing only the necessary area.
12. When assisting with a sterile procedure, the medical assistant should remember that a
sterile field is contaminated when:
A. The field is watched continuously
B. Sterile water drops onto a sterile basin from a sterile container
C. Anything non-sterile touches it, items fall below waist/table level, the field
becomes wet (strike-through), or it is left unattended or reached across
D. Sterile gloves touch sterile instruments
Rationale: Sterile technique rules: sterile-to-sterile only, 1-inch border is non-sterile, below-
waist items are contaminated, moisture wicks organisms (strike-through), never turn your
back on or reach across the field. When in doubt, consider it contaminated.
13. Surgical hand asepsis differs from routine hand hygiene because it:
A. Is quicker than regular handwashing
B. Involves longer scrubbing with antimicrobial agents (or approved surgical
rubs) to remove transient AND reduce resident flora before sterile procedures
C. Uses plain water only
D. Is needed only after procedures
Rationale: Surgical asepsis targets both transient and resident organisms with extended
antimicrobial contact; medical asepsis (routine washing/sanitizing) removes transient flora.
The level of hand hygiene matches the procedure's sterility requirements.
14. When removing sutures, the medical assistant should cut the suture:
A. Only after soaking in alcohol
B. Close to the skin below the knot and pull the suture out so that no exposed
(contaminated) portion is drawn through the tissue
C. Anywhere convenient and yank quickly
D. At the middle of the loop and pull the knot through the skin