Ordering the Test
Prothrombin Time (PT/INR) is a blood test that measures how long it takes for your blood to clot. This test is crucial for monitoring blood-thinning medications and ensuring your blood clots properly. Interestingly, PT/INR can also help detect liver problems, as the liver produces proteins necessary for blood clotting.
- Helps monitor the effectiveness of blood-thinning medications.
- Assists in diagnosing bleeding disorders.
- Can indicate liver health issues.
- Provides insight into your overall clotting ability.
Who Should Consider This Clotting Test?
If you’re taking anticoagulant medications, this test is essential to ensure your dosage is correct. People with a family history of bleeding disorders might also find this test beneficial. Additionally, if you’ve experienced unexplained bruising or bleeding, this test could provide valuable insights.
- Individuals with a family history of clotting disorders.
- Those on long-term anticoagulant therapy.
- People with liver conditions.
- Patients undergoing surgery that may affect clotting.
- Individuals with unexplained bruising or bleeding.
Preparing for Your Blood Clotting Test
Before taking the PT/INR test, it’s important to consult your treating physician for any special preparations. Generally, fasting is not required for this test, so you can eat and drink as usual. However, always follow any specific instructions given by your healthcare provider to ensure accurate results.
Labs Included When Ordering Your Prothrombin Time (PT/INR) Test
| Test Name | Reference Range | Significance | Low and High Levels of Prothrombin Time (PT/INR) |
|---|---|---|---|
| Prothrombin Time (PT/INR) | 10-13 | This test measures the time it takes for blood to clot. It is crucial for monitoring blood-thinning medications and assessing clotting disorders. | High: High levels of Prothrombin Time (PT/INR) may indicate a bleeding disorder or liver disease.
Low: Low levels of Prothrombin Time (PT/INR) could suggest a risk of excessive clotting. |
Reference ranges can vary. For the most accurate and up-to-date reference ranges for this lab test, visit Quest Diagnostics.
Prothrombin Time (PT/INR) FAQ
Is there Prothrombin Time (PT/INR) testing near me?
You can find nearby draw locations for the Prothrombin Time (PT/INR) with our patient service center locator + mobile phlebotomy.
What is the cost of the test?
The cost of the Prothrombin Time (PT/INR) test can be found at the top of the page. Pricing includes draw fees when visiting patient service centers.
How often should I retest?
It’s generally recommended to retest every 4 to 6 weeks if you’re on anticoagulant therapy, but your healthcare provider may suggest a different schedule based on your individual needs.
How accurate is the test?
TrueHealthLabs.com only partners with CLIA certified labs, ensuring the highest standards of accuracy and reliability for your test results.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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