Pathology MCQs
Pathology MCQs assess knowledge of disease mechanisms, histopathology, and systemic conditions. Covering organs like liver, lungs, heart, and kidneys, they help MDCAT, USMLE, NTS, and FCPS aspirants strengthen concepts and clinical understanding.
Q: Eosinophils are particularly active during
A) Bacterial fevers
B) Viral infections
C) Ischemic attacks
D) Parasitic infections
✅ Correct Answer: D
Explanation: Eosinophils combat parasites and contribute to allergic responses.
Q: The key enzyme in apoptosis is
A) Lipase
B) Caspase
C) Amylase
D) Peptidase
✅ Correct Answer: B
Explanation: Caspases orchestrate the cascade of events leading to programmed cell death.
Q: Dystrophic calcification occurs in
A) Damaged tissues
B) Immune organs
C) Red marrow
D) Healthy bone
✅ Correct Answer: A
Explanation: Calcium deposits form in necrotic or damaged tissues despite normal serum calcium levels.
Q: The primary function of histamine during inflammation is
A) Phagocytosis
B) Vasodilation
C) Platelet formation
D) DNA repair
✅ Correct Answer: B
Explanation: Histamine increases vascular permeability and dilates blood vessels.
Q: A karyolysis stage in necrosis reflects
A) Shrunken cytoplasm
B) Fragmented mitochondria
C) Enlarged nucleolus
D) Fading nucleus
✅ Correct Answer: D
Explanation: Karyolysis represents nuclear dissolution due to enzymatic degradation.