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Prothrombin Time Test and INR (PT/INR): MedlinePlus Medical Test

What transpires in the course of a PT/INR check?

The check may possibly be finished on a blood sample from a vein or a fingertip.

For a blood sample from a vein:

A health care experienced will get a blood sample from a vein in your arm, applying a small needle. Soon after the needle is inserted, a small sum of blood will be collected into a check tube or vial. You may possibly come to feel a small sting when the needle goes in or out. This usually normally takes less than 5 minutes.

For a blood sample from a fingertip:

A fingertip check may possibly be finished in a provider’s office environment or in your house. If you are using warfarin, your company may possibly endorse you check your blood regularly applying an at-house PT/INR check package. All through this check, you or your company will:

  • Use a small needle to puncture your fingertip
  • Acquire a drop of blood and area it onto a check strip or other particular instrument
  • Location the instrument or check strip into a system that calculates the effects. At-house equipment are small and lightweight.

If you are applying an at-house check package, you will require to assessment your effects with your company. Your company will let you know how he or she would like to receive the effects.