Examination
1. Which chamber of the heart pumps oxygenated blood into the systemic circulation?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Correct Answer: D. Left ventricle
Rationale:
D. Left ventricle is correct because it pumps oxygen-rich blood through the aorta to the rest of
the body under high pressure.
• A. Right atrium receives deoxygenated blood from the body.
• B. Right ventricle pumps deoxygenated blood to the lungs.
• C. Left atrium receives oxygenated blood from the lungs but does not pump it into
systemic circulation.
2. A medical assistant should perform hand hygiene:
A. Only before patient contact
B. Only after removing gloves
C. Before and after every patient interaction
D. Only when hands appear dirty
Correct Answer: C. Before and after every patient interaction
Rationale:
C. Before and after every patient interaction is correct because proper hand hygiene is the
most effective way to prevent healthcare-associated infections.
• A is incomplete because hand hygiene is also required after patient contact.
• B is incorrect because gloves do not replace hand hygiene.
, • D is incorrect because alcohol-based hand rubs should be used even when hands are not
visibly dirty.
3. Normal adult body temperature measured orally is approximately:
A. 95.0°F (35.0°C)
B. 98.6°F (37.0°C)
C. 100.8°F (38.2°C)
D. 102.5°F (39.2°C)
Correct Answer: B. 98.6°F (37.0°C)
Rationale:
B. 98.6°F (37.0°C) is considered the average normal oral body temperature.
• A indicates hypothermia.
• C indicates a mild fever.
• D indicates a high fever.
4. The abbreviation "BP" in a patient's medical record stands for:
A. Blood pressure
B. Body pulse
C. Blood perfusion
D. Breathing pattern
Correct Answer: A. Blood pressure
Rationale:
A. Blood pressure is correct because BP is the standard medical abbreviation for the force
exerted by circulating blood against the walls of the arteries.
• B. Body pulse is not a recognized medical abbreviation.
• C. Blood perfusion refers to blood flow through tissues but is not abbreviated as BP.
• D. Breathing pattern is assessed during respiratory examinations but is not represented
by BP.