Specimen: 3 mL Whole blood in 1 Blue Top (Sodium Citrate) tube. Mix thoroughly by inversion. Transport to Lab within 4 hours. If this is not possible, make PPP within 1 hour of collection as follows: Centrifuge sample at 3600 rpm for 15 min. & transfer supernatant to a clean plastic tube. Centrifuge this supernatant again at 3600 rpm for 15 mins. & finally transfer the supernatant (PPP) to 1 labelled, clean plastic screw capped vial. FREEZE IMMEDIATELY. Ship frozen. DO NOT THAW. Overnight fasting is preferred. Duly filled Coagulation Requisition Form (Form 15) is mandatory.
Stability (Room): 4 hrs
Stability (Refrigerated): 4 hrs
Stability (Frozen): 2 weeks
Method: Photo-optical Clot Detection
Price: Contact Medilab
Turnaround time (TAT): 10 – 15 days
Usage: In Dysfibrinogenemia, clotting activity may be lower than indicated by the fibrinogen concentration, because fibrinogen is not fully functional. The clotting assay is also useful in determining the availability of substrate for clot formation.
Disease: Disorders of Coagulation
Home Collection: Available
Pre-test Information: Overnight fasting is preferred. Duly filled Coagulation Requisition Form (Form 15) is mandatory.