Which medication is most appropriate for treating hyperkalemia?
Mannitol
Calcium Carbonate
Glucose & Insulin
Metoprolol
The Correct Answer is C
(A) Mannitol: Osmotic diuretic, does not significantly lower potassium.
(B) Calcium Carbonate: Used for hypocalcemia, not hyperkalemia.
(C) Glucose & Insulin: Insulin drives potassium into cells, reducing serum potassium levels. Glucose is given to prevent hypoglycemia.
(D) Metoprolol: Beta-blocker, does not directly lower potassium.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
(A) X-linked recessive: Requires two mutated genes in females or one in males (e.g., hemophilia, Duchenne muscular dystrophy).
(B) Mitochondrial: Inherited only from the mother, affects energy production.
(C) Autosomal recessive: Requires two copies of a mutated gene (one from each parent) to cause disease (e.g., cystic fibrosis, sickle cell anemia).
(D) Autosomal dominant: A single copy of a mutated gene from one parent is enough to cause a disorder. Examples include Huntington’s disease and Marfan syndrome.
Correct Answer is D
Explanation
(A) Hydrochlorothiazide: A thiazide diuretic used for hypertension, not ICP.
(B) Spironolactone: A potassium-sparing diuretic used for heart failure, not ICP.
(C) Furosemide: A loop diuretic that reduces fluid overload but is not the first choice for ICP management.
(D) Mannitol: An osmotic diuretic that reduces brain swelling by drawing fluid out of the brain and into the bloodstream.
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