Specimen Requirements

Review Collecting a Coagulation Test for complete instructions before drawing specimen.

Specimen Type: Whole blood
Container/Tube: Light-blue top (citrate)

Specimen Volume: 1 full tubes

Specimen Minimum Volume: 2.7 mL

Collection Instructions: 

1. Tubes must be full.

2. Send specimen in original tubes at room temperature.

3. Sample stable 4 hours at room temp.

4. If sample delivery is delayed,

    freeze platelet poor plasma (PPP) at -20° C for up to 2 weeks.