Which test is considered the most reliable screening method for detecting hemophilia?

Explanation

The Activated Partial Thromboplastin Time (APTT) is the preferred screening test for hemophilia as it evaluates the intrinsic and common coagulation pathways, which are typically affected in this disorder. Bleeding Time (BT), Prothrombin Time (PT), and Complete Blood Picture (CBP) are not reliable indicators for diagnosing hemophilia.