Prothrombin Time with INR

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One fullunopened3.2% sodium citrate (light blue-top) tube

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PT, INR (Prothrombin Time)

To help detect and diagnose a bleeding disorder

Updated 7/22/2025

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Prothrombin Time (PT) w/INR Blood Test

The Prothrombin Time w/ INR Blood Test is used to diagnose bleeding or clotting disorders and to determine if a medication that prevents blood clots is effective.

Updated 7/22/2025

Accesa Labs

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PT Test

The PT test measures the prothrombin time and INR in the blood.

Updated 7/24/2025

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Accesa Labs

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INR Test

The INR test checks the INR and PT / PTT blood levels and is frequently by people who are taking warfarin to manage their dosing.

Updated 7/24/2025