Test Code 62871373 PT (Prothrombin Time)

Performing Laboratory

Torrance Memorial Laboratories

Submit the following specimen:

Specimen Type: Whole blood

Container/Tube: Blue top (citrate)

Specimen Volume: Tube must be filled

Collection Instructions:

1. Tube must be filled to the fill line.

2. If using butterfly, discard tube must be drawn first.

Ambient

Storage Temp Stability:
Ambient: 24 hours

Refrigerated: 24 hours

Photometric

PT: 10.2 - 12.9 seconds

INR: See Interpretive Data below

Reference Range changed on 6/6/2017.

Guidelines for Stabilized Anticoagulant Therapy * INR Range

Surgery, most thromboembolic conditions 2.0-3.0

Recurrent venous thrombosis, recent MI, prosthetic valves 2.5-3.5

*INR values are for the evaluation of patients receiving long term stable anticoagulant therapy (achieved after two weeks of therapy).

Performed:

Daily

Available STAT

TAT:

STAT: <1 hr

Routine: < 4 hours

Prothrombin Time, Protime

85610