A puncture of the ear lobe or forearm to determine the time required for blood to stop flowing is:
A) bleeding time.
B) platelet count.
C) prothrombin time.
D) PTT.
A
Explanation: A) Correct.
B) A platelet count determines the number of thrombocytes in the blood.
C) The prothrombin time is done on plasma.
D) The PTT test is performed on blood plasma.
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