Explain what to expect during the test. If your child is anxious about it, work together on ways to stay calm. A prothrombin time (PT) test measures how long it takes for a clot to form in a blood ...

Claims have been made that this test is more satisfactory for controlling anticoagulant therapy than the Quick prothrombin time. 8–10 Since Quick's test as originally outlined in 1938 was not ...

To help your child get ready for a blood test, find out if they need to fast (not eat or drink) or should stop taking medicines before the test. Explain what to expect during the test. If your child ...

It results in excessive or prolonged bleeding after an injury or surgery. Factor II, also known as prothrombin, is a protein made in your liver. It plays an essential role in blood clot formation.