BIOS Final Review Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which cell type is primarily responsible for antibody
production?
A. B lymphocytes
B. T lymphocytes
C. Neutrophils
D. Macrophages
Correct Answer: A
Rationale: B lymphocytes differentiate into plasma cells that
produce antibodies.
2. Which organ is the primary site of erythropoiesis in adults?
A. Bone marrow
B. Spleen
C. Liver
D. Thymus
Correct Answer: A
Rationale: Bone marrow is the main site for red blood cell
production in adults.
,3. Hemoglobin A1c reflects blood glucose levels over:
A. 2–3 months
B. 1 week
C. 1 day
D. 6 months
Correct Answer: A
Rationale: HbA1c measures average glucose over the lifespan
of red blood cells (~120 days).
4. Which electrolyte imbalance is most commonly associated with
cardiac arrhythmias?
A. Hypokalemia
B. Hypernatremia
C. Hypercalcemia
D. Hypomagnesemia
Correct Answer: A
Rationale: Low potassium levels can cause dangerous cardiac
arrhythmias.
5. Which lab test is the most specific marker for myocardial
infarction?
A. Troponin
B. CK-MB
C. ALT
D. Creatinine
Correct Answer: A
, Rationale: Troponin is highly specific for cardiac muscle
injury.
6. What is the first-line imaging for suspected ischemic stroke?
A. CT scan
B. MRI
C. Ultrasound
D. X-ray
Correct Answer: A
Rationale: CT quickly identifies hemorrhagic vs ischemic
stroke.
7. Elevated ALT primarily indicates injury to which organ?
A. Liver
B. Kidney
C. Heart
D. Pancreas
Correct Answer: A
Rationale: ALT is a liver-specific enzyme elevated in
hepatocellular damage.
8. Which lab marker is elevated in bacterial infections?
A. Neutrophils
B. Lymphocytes
C. Eosinophils
D. Basophils
Correct Answer: A
, Rationale: Neutrophil count increases in response to bacterial
infections.
9. Which lab marker is elevated in viral infections?
A. Lymphocytes
B. Neutrophils
C. Eosinophils
D. Basophils
Correct Answer: A
Rationale: Viral infections stimulate lymphocyte proliferation.
10. Which test monitors warfarin therapy?
A. PT/INR
B. aPTT
C. CBC
D. Electrolytes
Correct Answer: A
Rationale: PT/INR measures anticoagulation effect of
warfarin.
11. Which test monitors heparin therapy?
A. aPTT
B. PT/INR
C. CBC
D. Electrolytes
Correct Answer: A
Rationale: aPTT evaluates anticoagulation effect of heparin.
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which cell type is primarily responsible for antibody
production?
A. B lymphocytes
B. T lymphocytes
C. Neutrophils
D. Macrophages
Correct Answer: A
Rationale: B lymphocytes differentiate into plasma cells that
produce antibodies.
2. Which organ is the primary site of erythropoiesis in adults?
A. Bone marrow
B. Spleen
C. Liver
D. Thymus
Correct Answer: A
Rationale: Bone marrow is the main site for red blood cell
production in adults.
,3. Hemoglobin A1c reflects blood glucose levels over:
A. 2–3 months
B. 1 week
C. 1 day
D. 6 months
Correct Answer: A
Rationale: HbA1c measures average glucose over the lifespan
of red blood cells (~120 days).
4. Which electrolyte imbalance is most commonly associated with
cardiac arrhythmias?
A. Hypokalemia
B. Hypernatremia
C. Hypercalcemia
D. Hypomagnesemia
Correct Answer: A
Rationale: Low potassium levels can cause dangerous cardiac
arrhythmias.
5. Which lab test is the most specific marker for myocardial
infarction?
A. Troponin
B. CK-MB
C. ALT
D. Creatinine
Correct Answer: A
, Rationale: Troponin is highly specific for cardiac muscle
injury.
6. What is the first-line imaging for suspected ischemic stroke?
A. CT scan
B. MRI
C. Ultrasound
D. X-ray
Correct Answer: A
Rationale: CT quickly identifies hemorrhagic vs ischemic
stroke.
7. Elevated ALT primarily indicates injury to which organ?
A. Liver
B. Kidney
C. Heart
D. Pancreas
Correct Answer: A
Rationale: ALT is a liver-specific enzyme elevated in
hepatocellular damage.
8. Which lab marker is elevated in bacterial infections?
A. Neutrophils
B. Lymphocytes
C. Eosinophils
D. Basophils
Correct Answer: A
, Rationale: Neutrophil count increases in response to bacterial
infections.
9. Which lab marker is elevated in viral infections?
A. Lymphocytes
B. Neutrophils
C. Eosinophils
D. Basophils
Correct Answer: A
Rationale: Viral infections stimulate lymphocyte proliferation.
10. Which test monitors warfarin therapy?
A. PT/INR
B. aPTT
C. CBC
D. Electrolytes
Correct Answer: A
Rationale: PT/INR measures anticoagulation effect of
warfarin.
11. Which test monitors heparin therapy?
A. aPTT
B. PT/INR
C. CBC
D. Electrolytes
Correct Answer: A
Rationale: aPTT evaluates anticoagulation effect of heparin.
