Questions And Correct Answer with Rational
(100% verified answer) Q & A 2026 /
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1. What is the primary function of red blood cells?
A. Fight infection
B. Carry oxygen
C. Produce hormones
D. Clot blood
Answer: B
Rationale: Red blood cells transport oxygen from lungs to tissues.
2. Which organ is responsible for insulin production?
A. Liver
B. Pancreas
C. Kidney
D. Heart
Answer: B
Rationale: The pancreas produces insulin to regulate blood sugar.
3. Normal adult resting heart rate is:
A. 40–60 bpm
B. 60–100 bpm
C. 100–140 bpm
D. 120–160 bpm
,Answer: B
Rationale: Normal resting heart rate ranges from 60–100 beats per minute.
4. Medical asepsis refers to:
A. Sterile technique only
B. Reducing infection agents
C. Surgery preparation
D. Killing all microbes
Answer: B
Rationale: Medical asepsis reduces microorganisms to prevent infection.
5. The suffix “-itis” means:
A. Tumor
B. Infection
C. Inflammation
D. Pain
Answer: C
Rationale: “-itis” refers to inflammation of a body part.
6. Normal blood pressure is approximately:
A. 90/60 mmHg
B. 120/80 mmHg
C. 140/90 mmHg
D. 160/100 mmHg
Answer: B
Rationale: 120/80 mmHg is considered normal adult blood pressure.
7. Which vitamin is essential for blood clotting?
A. Vitamin A
B. Vitamin C
C. Vitamin K
D. Vitamin D
Answer: C
Rationale: Vitamin K is required for clotting factor production.
, 8. The stethoscope is used to:
A. Measure temperature
B. Listen to internal sounds
C. Check vision
D. Measure oxygen level
Answer: B
Rationale: It is used for auscultation of heart and lungs.
9. The normal respiratory rate for adults is:
A. 8–10 breaths/min
B. 12–20 breaths/min
C. 20–30 breaths/min
D. 30–40 breaths/min
Answer: B
Rationale: Normal adult respiratory rate is 12–20 breaths per minute.
10. Which is a sign of infection?
A. Bradycardia
B. Fever
C. Hypotension
D. Cyanosis only
Answer: B
Rationale: Fever is a common sign of infection.
11. The smallest functional unit of the body is:
A. Organ
B. Tissue
C. Cell
D. System
Answer: C
Rationale: Cells are the basic unit of life.