![]() Automated instruments require an average of 100 µl per test for PT and APTT, 50 µl for Fibrinogen, and 20 µl for Factor Assays (i.e., PT, APTT, Fibrinogen Plus 2 assays = 0.There are two types of royal blue-top Monoject tubes one with the. This leaves 1.25 mL of plasma available for testing This tube is a plastic Vacutainer containing a clot activator but no anticoagulants.Allow 0.4 mL plasma to avoid disturbing the buffy coat cells (1.65 - 0.4 = 1.25 mL).Subtract PCV from whole blood volume to get volume of available plasma (3.0 - 1.35 = 1.65 mL).Total plastic citrate tube blood volume is 3.0 mL.This volume, 0.27 mL, allows for a repeat test, if neededįor 2.7 mL Plus Citrate Tube Assuming a Hct of 45:.Automated instruments require an average of 100 µl per test for PT and APTT tests, 50 µl for Fibrinogen, and 20 µl for Factor Assays.This still leaves 0.7 mL of plasma available for testing.Allow 0.4 mL plasma to remain to avoid disturbing the buffy coat (1.1 - 0.4 = 0.7 mL) BD Vacutainer Venous Blood Collection Tube Coagulation Tube Sodium Citrate Additive 13 X 75 mm 1.8 mL Light Blue BD Hemogard Closure Polyethylene Terephthalate (PET) Tube TUBE, BLD COL SODCIT LTBLU 1.Subtract PCV from whole blood volume to get volume of available plasma (2.0 - 0.9 = 1.1 mL).Packed Cell Volume (PCV) = 2.0 mL x 0.45 = 0.9 mL.Total plastic citrate tube blood volume is 2.0 mL.Tests in a 1.8 mL Plastic Citrate Tube Assuming a Patient Hematocrit of 45: ![]() CTAD Citrate tubes are ideal for patients. Used for coagulation analysis sodium citrate is the active ingredient. CTAD Citrate tubes are ideal for patients undergoing anticoagulant. VAT) Used for coagulation analysis sodium citrate is the active ingredient. The following bullet points demonstrate that there is enough plasma to perform coagulation testing in a patient with an average hematocrit of 45%. BD Vacutainer® Glass Citrate Tubes - Light Blue - 4.5ml - Pack of 100. Browse all syringes and needles products.Browse all specimen collection products A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube.Browse all Medication Management products.Medication and supply management software.Browse all microbiology solutions products.Browse all infection prevention products.EZ Scrub preoperative surgical scrub brushes.Browse all anaesthesia delivery products.
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