Category: Diseases of Blood

A patient on warfarin sodium following myocardial infarction reports for an oral surgical procedure which one of the following laboratory tests should be preferred to ascertain the fitness_______________?

A. Prothrombin time
B. Tourniquet time
C. Clotting time
D. Bleeding time

A. Purpura
B. Hemophilia
C. Polycythemia
D. Thalassemia

A. Folic acid deficiency
B. Pernicious anaemia
C. Plummer-Vinson syndrome
D. Paterson-Kelly syndrome

A. Factor IX deficiency
B. Vitamin K deficiency
C. Factor X deficiency
D. Factor VIII deficiency