Factor XI (Rosenthal) Activity, Sodium Citarte Whole Blood
Synonyms/Also Known as
Factor XI Activity
Coagulation Factor Assays, Blood Clotting Factors, prothrombin time (PT), activated partial thromboplastin time (aPTT)
Why get tested?
To help determine if the level of factor XI coagulation factor is elevated, decreased or normal.
When to get tested?
When there is an unexplained bleeding or prolonged bleeding when prothrombin time (PT) or activated partial thromboplastin time (PTT) test results are abnormal, when there is a family history of coagulation factor deficiency (hereditary), and to monitor the severity of factor deficiency or to know the effectiveness of treatment.