NEET MDS Quiz - Practice Test

1

Pathology

Which of the following is NOT a characteristic of MEN IIA?
1) Medullary thyroid carcinoma
2) Pheochromocytoma
3) Parathyroid adenomas
4) Mucosal neuromas

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Mucosal neuromas are not a characteristic of MEN IIA; they are associated with MEN IIB.

2

Pathology

The first step in normal hemostasis after vessel injury, mediated by a reflex neurogenic mechanism and endothelin, is:
1) Platelet adhesion
2) Vasoconstriction
3) Fibrin formation
4) Clot dissolution

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Correct answer: B) Immediately after injury, transient arteriolar vasoconstriction (via neurogenic reflex and endothelin) reduces blood flow. This is followed by primary hemostasis (platelet plug formation) and secondary hemostasis (coagulation cascade activation and fibrin formation), then clot repair and dissolution.

3

Pathology

All of the following are chromosomal breakage syndromes except:
1) Fanconi�s anemia
2) Ehler-Danlos syndrome
3) Bloom�s syndrome
4) Ataxia telangiectasia

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Ehler-Danlos syndrome is not a chromosomal breakage syndrome; it is a connective tissue disorder caused by defects in collagen synthesis.

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