Question

chapter 9: blood, lymphatic, and immune systems
read each question, select an answer, then click the \submit\ button.

1. which disease is characterized by abnormal blood clotting that depletes platelets and proteins, leading to profuse bleeding?

a. disseminated intravascular coagulation
b. hemophilia a
c. hemophilia b
d. hemoglobinopathy
e. sickle cell anemia

Explanation:

• Disseminated intravascular coagulation (DIC): Involves abnormal blood clotting (consuming platelets and clotting factors) followed by bleeding due to depletion of these components.
• Hemophilia A and B: Are genetic disorders with deficiency of specific clotting factors (Factor VIII for A, Factor IX for B), mainly causing bleeding due to lack of clotting factor, not abnormal clotting first.
• Hemoglobinopathy (e.g., sickle cell anemia): Primarily affects hemoglobin structure, leading to issues like anemia, pain crises (from sickled cells blocking blood flow), not the described abnormal clotting - depletion - bleeding pattern.

Answer:

A. Disseminated intravascular coagulation