VERIFIED QUESTIONS & ANSWERS
WITH RATIONALES | CERTIFIED
CLINICAL MEDICAL ASSISTANT
STUDY GUIDE | INSTANT
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Domain 1: Foundational Knowledge & Basic Science
1. What is the correct order of the chain of infection?
A. Reservoir → Portal of exit → Mode of transmission → Portal of entry → Susceptible
host → Infectious agent
B. Infectious agent → Reservoir → Portal of exit → Mode of transmission →
Portal of entry → Susceptible host
C. Susceptible host → Portal of entry → Mode of transmission → Portal of exit →
Reservoir → Infectious agent
D. Mode of transmission → Portal of exit → Reservoir → Infectious agent → Portal of
entry → Susceptible host
Rationale: The chain of infection starts with the infectious agent, then its reservoir, how
it exits, how it is transmitted, how it enters a new host, and finally the susceptible host.
Breaking any link prevents infection.
2. Which suffix means "surgical removal"?
A. -ostomy
B. -otomy
C. -ectomy
D. -plasty
Rationale: -ectomy means excision or surgical removal (e.g., appendectomy). -ostomy is
creation of an opening, -otomy is cutting into, and -plasty is surgical repair.
3. The plane that divides the body into anterior and posterior portions is the:
,A. Sagittal plane
B. Transverse plane
C. Frontal (coronal) plane
D. Midsagittal plane
Rationale: The frontal or coronal plane separates front (anterior) from back (posterior).
The sagittal plane divides left and right, and the transverse plane divides top and
bottom.
4. The prefix "hyper-" means:
A. Below normal
B. Above normal
C. Slow
D. Fast
Rationale: Hyper- indicates excessive or above normal (e.g., hypertension). Hypo-
means below normal.
5. Which of the following is a major function of the integumentary system?
A. Oxygen transport
B. Thermoregulation
C. Nutrient absorption
D. Hormone production
Rationale: The skin (integumentary system) regulates body temperature through
sweating and vasodilation/vasoconstriction.
6. The medical term for "high blood sugar" is:
A. Hypoglycemia
B. Hyperglycemia
C. Glycosuria
D. Glycogenesis
Rationale: Hyperglycemia = hyper (high) + glyc (sugar) + emia (blood). Hypoglycemia
is low blood sugar.
7. Which directional term means "toward the midline"?
A. Lateral
B. Medial
C. Proximal
D. Distal
,Rationale: Medial refers to structures closer to the body's midline. Lateral is away from
the midline.
8. The root "cardi" refers to:
A. Brain
B. Liver
C. Lung
D. Heart
Rationale: Cardi/o means heart (e.g., cardiology, electrocardiogram).
9. Which of the following is an example of active transport?
A. Diffusion of oxygen
B. Osmosis of water
C. Sodium-potassium pump
D. Filtration in kidneys
Rationale: Active transport requires energy (ATP) to move substances against a
concentration gradient. The sodium-potassium pump is a classic example.
10. When the same dose of a drug no longer produces the desired effect, the
patient has developed:
A. An idiosyncratic reaction
B. A drug tolerance
C. A drug interaction
D. An allergic reaction
Rationale: Drug tolerance occurs when the body adapts to a medication, requiring a
higher dose to achieve the same therapeutic effect.
Domain 2: Anatomy and Physiology
11. Identify the structure that connects the middle ear to the nasopharynx and
helps equalize pressure during altitude changes.
A. Tympanic membrane
B. Eustachian tube
C. Semicircular canals
D. Cochlea
, Rationale: The Eustachian tube (auditory tube) connects the middle ear to the
nasopharynx, allowing pressure equalization. The tympanic membrane is the eardrum,
while the semicircular canals and cochlea are involved in balance and hearing.
12. What is the medical term for "pain in the ear"?
A. Otodynia
B. Incision into the eardrum
C. Surgical procedure that breaks up stones
D. Runny nose
Rationale: Otodynia (also called otalgia) specifically refers to ear pain. The other
options describe different conditions or procedures.
13. The medical abbreviation "OU" refers to:
A. Left eye
B. Both eyes
C. Right ear
D. Both ears
Rationale: In medical terminology, OU (oculus uterque) means "both eyes." OD is right
eye, and OS is left eye.
Domain 3: Clinical Patient Care (56% of Exam)
Patient Intake and Vitals
14. A medical assistant is preparing to obtain a patient's blood pressure. Which
of the following is the correct technique?
A. Place the cuff over the patient's clothing
B. Position the cuff 1 inch above the antecubital space
C. Inflate the cuff immediately to 200 mm Hg
D. Have the patient stand during the measurement
Rationale: The correct technique involves placing the cuff snugly on the bare arm,
about 1 inch (2.5 cm) above the antecubital space. The patient should be seated and
rested, and the cuff should be inflated to 20-30 mm Hg above the estimated systolic
pressure.