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 A
Explanation
A) This choice is correct. Taking the iron supplement with meals may reduce gastrointestinal side effects, such as nausea and stomach upset, which are common with iron supplementation.
B) This choice is incorrect because taking iron supplements with meals may reduce iron absorption due to interference with other dietary components.
C) This choice is incorrect because taking the supplement with meals does not directly improve its effectiveness in treating anemia.
D) This choice is incorrect because interactions with other medications are not specifically related to the timing of iron supplementation with meals.
Correct Answer is C
Explanation
A) This choice is incorrect because hemolytic anemia typically presents with normocytic and normochromic red blood cells, as the bone marrow compensates by releasing immature red blood cells.
B) This choice is incorrect because sickle cell anemia is characterized by the presence of sickle-shaped red blood cells and is not associated with microcytic and hypochromic cells.
C) This choice is correct. Thalassemia is a type of anemia in which the synthesis of globin chains is impaired, leading to microcytic and hypochromic red blood cells.
D) This choice is incorrect because pernicious anemia is associated with macrocytic and normochromic red blood cells due to vitamin B12 deficiency.
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