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PT INR Testing Specialist

Healing Touch Medical

Medical Weight Loss Management located in Paramus, NJ

If you’re in need of surgery or are on blood thinners, your doctor might suggest a prothrombin time (PT) and international normalized ratio (INR) test to measure how quickly your blood clots. Birinder Kaur, MD, offers PT INR testing at Healing Touch Medical in Paramus, New Jersey. Schedule your PT INR test today by calling the office or book using the online scheduling tool.

PT INR Testing Q & A

What is blood clotting?

Blood clotting is a natural process your body enacts to stop bleeding. When you get a cut, your body sends cells, called platelets, to the damaged area, followed by proteins, called clotting factors. Your proteins and clotting factors combine to form a solid mass, called a blood clot, which stops the bleeding.


Some people have complications with their clotting factors, however. This causes them to bleed too easily or to get clots when they shouldn’t.

What is PT INR testing?

A prothrombin time (PT) test is a diagnostic that your doctor administers to measure how quickly the liquid portion of your blood clots. International normalized ratio is a ratio that’s used to express the results from your PT test. The purpose of the INR is to standardize measurements and test results across different laboratories. 

When do I need PT INR testing?

The most common reason for ordering a PT test is to monitor your blood if you’re taking warfarin, a blood-thinning medication that’s used to prevent blood-clot-related conditions like pulmonary embolism or deep venous thrombosis. The PT test can help your doctor determine whether you’re taking the appropriate dose of medication.


Some other reasons your doctor might order a PT INR test is to look for signs of:


  • Liver problems (your liver produces your clotting factors)
  • Certain cancers, like leukemia
  • Bleeding disorders, like hemophilia
  • Bone marrow issues
  • Vitamin K deficiency
  • Immune system disorders


Evaluating your clotting ability with a PT test is also helpful in determining your suitability for surgery.

What happens during a PT INR test?

A PT INR test isn’t any more complicated than a simple blood draw. Your provider takes a blood sample (either with a syringe or a finger-prick device) and sends it to a lab for testing.


The diagnostic laboratory then measures how quickly your blood clots. Depending on the lab, you could get your results back within hours, or it could take a few days. Normal blood takes between 10-14 seconds to clot. If your sample takes more or less time, your doctor might order more tests to determine the cause.


To schedule your PT INR test, simply call the offices at Healing Touch Medical or book a visit online today.