The nurse is preparing to administer 20 mEq of potassium chloride to a client who has been vomiting. What should the nurse explain to the client about the purpose of this medication?
A) It is vital in regulating muscle contraction and relaxation.
B) It is needed to maintain skeletal, cardiac, and neuromuscular activity.
C) It controls and regulates water balance in the body.
D) It is used in the body to synthesize ingested protein.
Answer: B
Potassium is the major cation in intracellular fluids, with only a small amount found in plasma and interstitial fluid. Potassium is a vital electrolyte for skeletal, cardiac, and smooth muscle activity. Calcium is vital in regulating muscle contraction and relaxation. Sodium controls and regulates water balance in the body. Magnesium is used in the body to synthesize ingested protein.
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