The most common clotting test is called a PT/INR test. The PT (prothrombin time) is how long it takes your blood to clot. An INR (internationalized normalized ratio) is a calculation based on the PT. Your blood test result is usually expressed as an INR.
- Q How is cord blood used?
- Q Why is there a charge when I receive blood if blood is donated?
- Q Why is my hemoglobin and/or hematocrit checked before giving blood?
- Q How long do I wait to donate blood after organ or tissue transplant?
- Q Can lesbians donate blood if they do not have other risk factors?
- Q Can I donate blood if I have had a blood transfusion?