platelet clumping

^[1]^[2]^[3]

Etiology

* platelet clumping will resolve if blood is redrawn using a citrated (blue top) or heparinized (green top) tube

↑ Medical Knowledge Self Assessment Program (MKSAP) 11, 15, 16, 17. American College of Physicians, Philadelphia 1998, 2009, 2012, 2015
↑ Froom P, Barak M. Prevalence and course of pseudothrombocytopenia in outpatients. Clin Chem Lab Med. 2011 Jan;49(1):111-4. PMID: https://www.ncbi.nlm.nih.gov/pubmed/20961195
↑ Lippi G, Plebani M. EDTA-dependent pseudothrombocytopenia: further insights and recommendations for prevention of a clinically threatening artifact. Clin Chem Lab Med. 2012 Aug;50(8):1281-5. PMID: https://www.ncbi.nlm.nih.gov/pubmed/22868791