After an appendectomy, a 15 yo male started oozing at the incision. He had a history of a mild bleeding tendency. Coag Lab results: Platelets= 420 x 109/L PT = 28 sec APTT = 31 sec BT = 5 min PT corre"
A. Prothrombin
B. Fibrinogen
C. Thromboplastin
D. Hemoglobin