Method Name
Photo-Optical Clot Detection
Aliases
Prothrombin Time; Protime; PT; INR, Protime
Specimen Required
One full 2.7 mL (3.2% sodium citrate) blue top tube. Specimen will be rejected if the tube is underfilled or overfilled.
Specimen Minimum Volume
2.7 mL of blood
Specimen Stability Information
Specimen is stable for 24 hours (centrifuged or uncentrifuged; at room temperature)
Performing Laboratory
As ordered. Turn around time is 4 hours.
Reference Values
10.2 – 12.9 seconds