Comparing coagulation tests + Laboratory findings in various platelet and coagulation disorders Condition Prothrombin time Partial thromboplastin time Bleeding time Platelet count Vitamin K deficiency or warfarin Prolonged Normal or mildly prolonged Unaffected Unaffected Disseminated intravascular coagulation Prolonged Prolonged Prolonged Decreased Von Willebrand disease Unaffected Prolonged or unaffected Prolonged Unaffected Hemophilia Unaffected Prolonged Unaffected Unaffected Aspirin Unaffected Unaffected Prolonged Unaffected Thrombocytopenia Unaffected Unaffected Prolonged Decreased Liver failure, early Prolonged Unaffected Unaffected Unaffected Liver failure, end-stage Prolonged Prolonged Prolonged Decreased Uremia Unaffected Unaffected Prolonged Unaffected Congenital afibrinogenemia Prolonged Prolonged Prolonged Unaffected Factor V deficiency Prolonged Prolonged Unaffected Unaffected Factor X deficiency as seen in amyloid purpura Prolonged Prolonged Unaffected Unaffected Glanzmann's thrombasthenia Unaffected Unaffected Prolonged Unaffected Bernard–Soulier syndrome Unaffected Unaffected Prolonged Decreased or unaffected Factor XII deficiency Unaffected Prolonged Unaffected Unaffected C1INH deficiency Unaffected Shortened Unaffected Unaffected
Bleeding diathesis
Orthostatic purpura
Thrombotic storm
Gynecologic hemorrhage
Gastrointestinal bleeding
Deep vein thrombosis
Upper gastrointestinal bleeding
Thrombophilia