Parents of a hemophiliac child ask the nurse, "Can you describe hemophilia to us?" Which response by the nurse is descriptive of most cases of hemophilia?
A) Autosomal dominant disorder causing deficiency in a factor involved in the blood-clotting reaction
B) X-linked recessive inherited disorder causing deficiency of platelets and prolonged bleeding
C) X-linked recessive inherited disorder in which a blood-clotting factor is deficient
D) Y-linked recessive inherited disorder in which the red blood cells become moon-shaped

Question

Quizplus · Accepted Answer

The inheritance pattern in 80% of all of the cases of hemophilia is X-linked recessive. The two most common forms of the disorder are factor VIII deficiency, hemophilia A or classic hemophilia; and factor IX deficiency, hemophilia B or Christmas disease. The inheritance pattern is X-linked recessive. The disorder involves coagulation factors, not platelets, and does not involve red cells or the Y chromosomes.

Parents of a Hemophiliac Child Ask the Nurse, "Can You