loader
Find a Test

Prothrombin Time

Test Details
Test Details
Sample Requirements
Sample Requirements
Order Code
21251
CPT
85610
Test Details
Synonyms

INR

TAT

24 hours

Methodology

Chronometry

Performing Location

Accredited NRL Laboratory

Testing Frequency

Daily

Test Overview

Prothrombin time to assess extrinsic coagulation pathway.

Specimen Type

Plasma

Volume

0.5 mL

Specimen Container

3.2% sodium citrate blue top

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Room temperature Whole blood/Plasma: 4 hours
Frozen Plasma: 7 days
Order Code
21251
CPT
85610
Test Details
Synonyms

INR

TAT

24 hours

Methodology

Chronometry

Performing Location

Accredited NRL Laboratory

Testing Frequency

Daily

Test Overview

Prothrombin time to assess extrinsic coagulation pathway.

Specimen Type

Plasma

Volume

0.5 mL

Specimen Container

3.2% sodium citrate blue top

Patient Preparation

No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.

Collection

This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.

Specimen Stability
Temperature Period
Room temperature Whole blood/Plasma: 4 hours
Frozen Plasma: 7 days