Description

the factor VIII activity test to help diagnose or monitor the treatment of hemophilia A. The test also can help find the reason for an abnormal result on other clotting tests, such as prothrombin time PT or partial thromboplastin time PTT

Pre-Information

Overnight fasting is required. Before to sampling, it is advised that the patient stop using oral anticoagulants for seven days and heparin for one day, respectively. Discontinuation should only be done with the treating physician permission.