Thrombocytosis
Thrombocytosis I. Problem/Condition. Defined as platelet count of greater than 450,000 cells/microliter (cells/μL). II. Diagnostic Approach. A. What is the differential diagnosis for this problem? The differential includes spurious, reactive (secondary) or autonomous (primary) thrombocytosis. Always confirm by repeat testing of the platelet count and peripheral smear and exclude false or spurious causes of thrombocytosis.…