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 Are transfer factor supplements safe for pregnant or nursing women?
- Q Should I provide my own donors?
- Q Why is so much blood drawn for different blood tests?
- Q Does donating blood hurt?
- Q What kind of blood is most commonly donated?
- Q When blood is donated, is it tested for AIDS and hepatitis?