Prothrombin Time, APTT, Factor VIII Functional, Factor IX
6 mL Whole blood in 2 Blue Top (Sodium Citrate) tubes. Mix thoroughly by inversion. Transport to Lab within 4 hrs. If this is not possible, make PPP within 1 hour of collection. FREEZE IMMEDIATELY. Ship frozen. DO NOT THAW. Overnight fasting is preferred. Duly filled Coagulation Requisition Form is mandatory.
Electromechanica l & Photo-optical Clot Detection
Sample by Wed 1 pm
Report 3rd Day Evening
It is recommended that patient discontinues Heparin for 1 day and Oral Anticoagulants for 7 days prior to sampling as these drugs may affect test results. Discontinuation should be with prior consent from the treating Physician.