<prompt> Anticoagulant used in coagulation study is?Calcium citrateEDTASodium bromideTrisodium citrate  <response>: Trisodium citrate is the preferred anticoagulant for platelet and coagulation studies. EDTA: Primary use is for the CBC and individual components of the CBC. Pseudothrombocytopenia is seen when the blood sample is collected inEDTA l In vitro aifact resulting from platelet agglutination antibodies IgG, IgM,IgA when the calcium content is decreased by blood collection in EDTA 