Which of the following statements about the coagulation cascade is/are true?
A. The intrinsic pathway of coagulation is the predominant pathway in vivo for hemostasis and coagulation.
B. The intrinsic pathway beginning with the activation of factor XII is the predominant in vivo mechanism for activation of the coagulation cascade.
C. Deficiencies of factor VIII and IX cause highly significant coagulation abnormalities.
D. Deficiencies of factor XII cause severe clinical bleeding syndromes.
Answer:A
Which of the following statements about the coagulation cascade is/are true?
A. The intrinsic pathway of coagulation is the predominant pathway in vivo for hemostasis and coagulation. B. The intrinsic pathway beginning with the activation of factor XII is the predominant in vivo mechanism for activation of the coagulation cascade. C. Deficiencies of factor VIII and IX cause highly significant coagulation abnormalities. D. Deficiencies of factor XII cause severe clinical bleeding syndromes.