What is the primary pathophysiological process that occurs in disseminated intravascular coagulation (DIC)?
Decreased production of clotting factors
Impaired platelet function
Excessive activation of clotting factors and widespread clot formation
Excessive platelet production
The Correct Answer is C
A. DIC is not characterized by decreased production of clotting factors. Instead, it involves consumption of clotting factors due to widespread activation of coagulation.
B. While platelet dysfunction may occur in DIC due to consumption and depletion of platelets, the primary pathophysiological process in DIC is the activation of clotting factors and formation of blood clots throughout the vasculature.
C. Excessive activation of clotting factors and widespread clot formation is the primary pathophysiological process in DIC. This leads to the formation of numerous small blood clots throughout the body's blood vessels, resulting in organ dysfunction and potentially life-threatening complications.
D. Excessive platelet production is not a characteristic feature of DIC. Instead, platelets are consumed and depleted as they are incorporated into the blood clots formed during the
coagulation cascade in DIC.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Hemophilia A: Hemophilia A is caused by a deficiency of factor VIII, leading to problems with blood clotting.
B. Hemophilia B: Hemophilia B is caused by a deficiency of factor IX, not factor VIII.
C. Christmas disease: Christmas disease is another name for Hemophilia B, which is caused by a deficiency of factor IX.
D. Sickle cell disease: Sickle cell disease is a genetic disorder affecting hemoglobin, not a clotting factor deficiency.
Correct Answer is A
Explanation
A. The activity of the bone marrow is depressed. Aplastic anemia is a condition where the bone marrow fails to produce sufficient numbers of blood cells, including red cells, white cells, and platelets.
B. Red cells are absent as a result of chronic blood loss. This describes a condition like iron- deficiency anemia, not aplastic anemia.
C. The bone marrow fails to produce lymphocytes. Aplastic anemia affects the production of all blood cells, not just lymphocytes.
D. The kidneys fail to produce red blood cells. This describes anemia of chronic kidney disease, not aplastic anemia. In aplastic anemia, the problem lies with the bone marrow, not the kidneys.
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