Final Exam Questions and Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
Question 1
Which organ is primarily responsible for pumping blood throughout the body?
A. Lungs
B. Heart
C. Liver
D. Kidneys
Correct Answer: B. Heart
Rationale:
The heart pumps oxygenated and deoxygenated blood through the circulatory
system.
Question 2
Which vital sign measures the force of blood against artery walls?
A. Temperature
B. Pulse
C. Blood pressure
D. Respiratory rate
Correct Answer: C. Blood pressure
Rationale:
Blood pressure measures the force exerted by circulating blood on arterial walls.
,Question 3
What is the normal adult resting heart rate?
A. 30–50 beats/minute
B. 60–100 beats/minute
C. 110–130 beats/minute
D. 140–160 beats/minute
Correct Answer: B. 60–100 beats/minute
Rationale:
A normal resting heart rate for healthy adults is 60–100 bpm.
Question 4
Which chamber of the heart pumps oxygenated blood into the body?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Correct Answer: D. Left ventricle
Rationale:
The left ventricle pumps oxygen-rich blood into the aorta and systemic
circulation.
Question 5
Which blood vessel carries oxygenated blood away from the heart?
A. Vein
B. Capillary
C. Artery
D. Venule
,Correct Answer: C. Artery
Rationale:
Arteries generally carry oxygenated blood away from the heart.
Question 6
Which assessment technique uses a stethoscope?
A. Inspection
B. Palpation
C. Percussion
D. Auscultation
Correct Answer: D. Auscultation
Rationale:
Auscultation involves listening to internal body sounds.
Question 7
Which electrolyte is essential for normal cardiac muscle contraction?
A. Sodium
B. Potassium
C. Magnesium
D. Chloride
Correct Answer: B. Potassium
Rationale:
Potassium is critical for normal cardiac electrical activity and contraction.
Question 8
Which laboratory test measures long-term blood glucose control?
, A. CBC
B. Hemoglobin A1C
C. BUN
D. INR
Correct Answer: B. Hemoglobin A1C
Rationale:
Hemoglobin A1C reflects average blood glucose over approximately three
months.
Question 9
Which organ is primarily responsible for gas exchange?
A. Heart
B. Liver
C. Lungs
D. Pancreas
Correct Answer: C. Lungs
Rationale:
The lungs exchange oxygen and carbon dioxide in the alveoli.
Question 10
What is the normal oxygen saturation for most healthy adults?
A. 75–80%
B. 85–89%
C. 95–100%
D. 60–70%
Correct Answer: C. 95–100%
Rationale:
Normal oxygen saturation is generally 95–100%.