Blue top tube, 3.2% sodium citrate
Full 2.7mL tube or 1mL plasma aliquot
Full 1.8mL tube or 1mL plasma aliquot
Collect specimen in a blue top (citrate 3.2%) tube. Mix by inversion. Specimen should arrive at lab within 3 hours of collection; transport at room temperature. Alternatively, centrifuge, aliquot plasma into a plastic vial, and freeze the specimen within 4 hours of collection. Transport frozen specimen on dry ice. Collection of the blood through lines that have been previously flushed with heparin should be avoided. If the blood must be drawn through a VAD (vascular access device), the line should be flushed with 5 mL of saline and the first 5 mL of blood or six dead space volumes of the VAD discarded.
Collect specimen in a blue top (citrate 3.2%) tube. Mix by inversion. Specimen should arrive at lab within 3 hours of collection; transport at room temperature. Collection of the blood through lines that have been previously flushed with heparin should be avoided. If the blood must be drawn through a VAD (vascular access device), the line should be flushed with 5 mL of saline and the first 5 mL of blood or six dead space volumes of the VAD discarded.
Daily (Monday - Friday only)
1 hour
Mechanical clot detection after addition of snake venom.
< 22 seconds
Screening procedure for monitoring levels of functional fibrinogen.
85635
31133
Specimens will be rejected if not properly filled, clotted, grossly hemolyzed, or contaminated with heparin.
Room temperature for whole blood or frozen aliquot of citrated plasma