Prothrombin Time, PT


Monitoring intensity of oral anticoagulant therapy when combined with INR reporting Screening assay to detect deficiencies of 1 or more coagulation factors (factors I, II, V, VII, X) due to: -Hereditary or acquired deficiency states -Vitamin K deficiency -Liver disease -Specific coagulation factor inhibitors Screening assay to detect coagulation inhibition ("circulating anticoagulants") associated with: -Specific coagulation factor inhibitors -Lupus-like anticoagulant inhibitors (antiphospholipid antibodies) -Nonspecific PT inhibitors (eg, monoclonal immunoglobulins, elevated fibrin degradation products)Prothrombin Time is done to assess the extrinsic and common coagulation pathway from Factor VII through fibrin formation. Results are interpreted based on INR. A prolonged INR suggests a potential bleeding disorder.

Test Code MolQ1425
Turn Around Time Same day
Pre Test Information 3 ml Whole blood in 1 Blue Top (Sodium Citrate) tube. Mix thoroughly by inversion, Transport to Lab within 4 hrs. If this is not possible, make PPP within 1 hour of collection as follows: Centrifuge sample at 3000 rpm for 15 min & transfer supernatant to a clean plastic tube. Centrifuge this supernatant again at 3000 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 is mandatory.
Sample Proportion of blood as per Sodium Citrate vial
Actual Price
Rs. 365
Rs. 85
Rs. 280