Pacific · Prothrombin Test: Prothrombin Time PT with INR
Prothrombin Test: Prothrombin Time PT with INR in California
Prothrombin Test: Prothrombin Time PT with INR is a laboratory test you can request directly. The Prothrombin Test evaluates blood clotting by measuring prothrombin time and INR levels.
What this test is
This test assesses how quickly your blood clots by measuring prothrombin time (PT) and the International Normalized Ratio (INR). It helps evaluate the function of certain clotting factors in the blood.
What it measures
- Prothrombin Time (PT) — reflects how quickly blood clots
- International Normalized Ratio (INR) — standardizes PT results across different labs
What the test involves
The test involves a standard blood draw, typically from a vein in your arm. The sample is then analyzed in a laboratory to measure clotting times.
Why it is often ordered
Clinicians often order this test to monitor blood-thinning medication or assess bleeding disorders. It can also help evaluate liver function or vitamin K status.
Preparation
Preparation instructions may vary, so it's important to follow the specific guidelines provided by the lab conducting the test.
How results are reported
Results are reported as prothrombin time and INR values. Reference ranges can differ between laboratories, so it's best to discuss results with a healthcare provider.
Before you go
- Check if fasting is needed
- Verify turnaround time
- Confirm any medication restrictions
Cities
Prothrombin Test: Prothrombin Time PT with INR in California communities
Choose your city for local context and to request this test.