The nurse is caring for a patient receiving treatment for a hemolytic reaction from a mismatched blood transfusion. The nurse understands that this the incompatible blood is causing what?
Malformed RBCs
A deficiency in vitamin B12
An abundance of immature RBCS
Destruction of RBCs
The Correct Answer is D
A. Malformed RBCs: Malformed RBCs are not caused by a transfusion reaction; they are generally a result of bone marrow abnormalities or genetic conditions.
B. A deficiency in vitamin B12: Vitamin B12 deficiency causes megaloblastic anemia, not hemolysis. It is unrelated to transfusion reactions.
C. An abundance of immature RBCs: Immature RBCs, or reticulocytes, can increase as a compensatory response to anemia but are not a direct result of a transfusion reaction. The primary issue is RBC destruction.
D. Destruction of RBCs: A hemolytic reaction occurs when the immune system attacks incompatible red blood cells, leading to their destruction.
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Correct Answer is D
Explanation
A. 2 hr: While some patients may tolerate faster infusion rates, the maximum safe time is 4 hours, and there is no requirement to complete it in 2 hours.
B. 8 hr: Blood cannot be left out for 8 hours due to the increased risk of bacterial growth and contamination.
C. 6 hr: Infusing blood over 6 hours exceeds the safe time limit and poses a risk of bacterial contamination.
D. 4 hr: To reduce the risk of bacterial contamination, a unit of packed RBCs must be transfused within 4 hours of starting the infusion. This time frame ensures that the blood remains safe for the patient while minimizing exposure to room temperature.
Correct Answer is B
Explanation
A. WBCs: White blood cell counts may vary in multiple myeloma, but they are not typically increased; in fact, WBC counts can be low due to bone marrow crowding.
B. Calcium: Multiple myeloma often causes hypercalcemia because of increased bone breakdown, leading to the release of calcium into the bloodstream.
C. Absolute neutrophil count: The absolute neutrophil count may actually decrease as a result of bone marrow dysfunction, not increase.
D. Platelets: Platelet counts are often decreased in multiple myeloma due to bone marrow involvement, not increased.