Platelet clumping caused by EDTA-dependent agglutinins typically produces what spurious result on an automated analyzer?

Platelet clumping caused by EDTA-dependent

Multiple choice — select the best answer

AFalsely elevated platelet count
BFalsely decreased platelet count (pseudothrombocytopenia)
CFalsely elevated hemoglobin
DNo effect on platelet count

✓ Correct answer: B. Falsely decreased platelet count (pseudothrombocytopenia) EDTA-induced clumps are counted as single large particles or excluded, lowering the reported count; redrawing in sodium citrate and correcting for dilution resolves the pseudothrombocytopenia.

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Topic: Hematology

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