Which lab value is a reliable indicator of bone marrow suppression in a patient receiving chemotherapy?

A. Prolonged bleeding or easy bruising is a characteristic feature of hemophilia, a genetic
disorder characterized by deficient or defective blood clotting proteins, leading to impaired blood clotting and prolonged bleeding after injury or trauma.
B. Excessive blood clotting is not a characteristic feature of hemophilia; rather, it is the opposite.
Hemophilia is characterized by a deficiency in clotting factors, which results in impaired clot formation.
C. Hemophilia does not typically result in increased platelet count. Platelets are involved in the initial stages of blood clotting, but hemophilia primarily affects clotting factor proteins.
D. Delayed wound healing is not a characteristic feature of hemophilia. Hemophilia primarily affects blood clotting, leading to prolonged bleeding, but it does not directly affect wound
healing processes.

A. Presence of plethora is a common symptom of polycythemia vera and indicates increased blood volume but is not immediately life-threatening.
B. Calf swelling and pain could indicate a deep vein thrombosis (DVT), which is a serious complication that requires immediate medical attention.
C. A platelet count of 450,000/microL is elevated but not as critical as the possibility of a DVT.
D. Hematocrit of 55% is high, which is expected in polycythemia vera, but it is not as immediately critical as the risk of thrombosis suggested by calf swelling and pain.