A nurse is caring for a client with megaloblastic anemia. Which vitamin deficiency is most likely responsible for this condition?
Vitamin A
Vitamin B12
Vitamin C
Vitamin D
The Correct Answer is B
A) This choice is incorrect because vitamin A deficiency does not cause megaloblastic anemia.
B) This choice is correct because megaloblastic anemia is typically caused by a deficiency of vitamin B12 or folic acid, which are essential for normal red blood cell production.
C) This choice is incorrect because vitamin C deficiency leads to scurvy, a condition unrelated to megaloblastic anemia.
D) This choice is incorrect because vitamin D deficiency can lead to conditions like rickets, but it does not cause megaloblastic anemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) This choice is incorrect because while antibiotics may be necessary if there is an infection, they are not the priority intervention during a vaso-occlusive crisis.
B) This choice is incorrect because blood transfusions may be needed if there is severe anemia or complications, but they are not the priority intervention during a vaso-occlusive crisis.
C) This choice is correct. Initiating oxygen therapy is a priority in managing a vaso-occlusive crisis in sickle cell anemia. Providing supplemental oxygen can help improve tissue oxygenation and reduce the severity of the crisis.
D) This choice is incorrect because although encouraging fluid intake is important in managing sickle cell anemia, it is not the priority intervention during a vaso-occlusive crisis.
Correct Answer is D
Explanation
A) This choice is incorrect because taking ferrous sulfate with water is generally acceptable and does not significantly affect iron absorption.
B) This choice is incorrect because taking ferrous sulfate with orange juice, which is rich in vitamin C, can enhance iron absorption and is often recommended.
C) This choice is incorrect because taking ferrous sulfate with milk can reduce iron absorption, but it is not as significant as with tea or coffee.
D) This choice is correct. Tea, especially black tea, contains tannins that can inhibit iron absorption when taken with ferrous sulfate or other iron supplements.
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