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Pediatrics · Hematology: immune thrombocytopenia
Sample itemA child after a viral illness has petechiae and bruising, platelet count 12 x 10^9/L, but normal hemoglobin, white count, and examination. What is most likely?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Immune thrombocytopenia
Immune thrombocytopenia is isolated immune-mediated platelet destruction, often after viral illness in children. Assessment must exclude red flags for marrow disease or serious bleeding.
Option by option
A. Acute leukemia
Leukemia often causes multiple cytopenias, bone pain, lymphadenopathy, or organomegaly.
B. Hemophilia A
Hemophilia causes coagulation-factor deficiency with normal platelets.
C. Disseminated intravascular coagulation
DIC has systemic illness and abnormal coagulation tests.
D. Immune thrombocytopenia (correct)
Correct. Isolated thrombocytopenia with otherwise well child fits ITP.
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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