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Pathology · Coagulation disorders
Sample itemWhat process best explains simultaneous bleeding and microvascular thrombosis in disseminated intravascular coagulation?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Widespread coagulation activation consuming platelets and factors
Disseminated intravascular coagulation involves pathologic systemic coagulation activation, generating microthrombi while consuming platelets and clotting factors, which can then produce serious bleeding and organ dysfunction.
Option by option
A. Only reduced red-cell production
Reduced erythropoiesis causes anaemia, not DIC physiology.
B. Simple dehydration without inflammation
Dehydration alone does not explain this combined thrombosis and bleeding syndrome.
C. Widespread coagulation activation consuming platelets and factors (correct)
Correct: consumption of platelets and factors follows widespread clotting activation.
D. Isolated vitamin C deficiency
Vitamin C deficiency causes connective-tissue bleeding but not diffuse microthrombosis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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