Test Code PTMIX Prothrombin Time Mixing Study, Plasma

Important Note

Test will be cancelled if the patient has a normal PT or if the patient is on anticoagulant therapy.

Chilton Hospital Laboratory-Hematology

Clot Detection

Specimen Type: Plasma

Container/Tube: Light-blue top (3.2% sodium citrate)

Specimen Volume: 2 full tubes

Collection Instructions:

1. Do not draw from an arm with heparin lock or heparinized catheter.

2. If specimen must be drawn from central line, flush with saline; and discard the first 5 mL of blood.

Forms: Laboratory Misc. (CMH Graphics Arts #110-10 401) in Request Forms in Special Instructions.

Specimen Rejection:

1. Clotted blood

2. Insufficient specimen

Ambient

12.2 - 14.3 sec.

Monday through Friday (7 a.m.-11:00a.m.)

Turnaround Time:

Routine-8 hours

Available STAT