A nurse is caring for a client who is to receive potassium replacement. The provider’s prescription reads, “Potassium chloride 30 mEq in 0.9% sodium chloride 100 mL IV over 30 min.” For which of the following reasons should the nurse clarify this prescription with the provider?
The potassium infusion rate is too rapid.
Another formulation of potassium should be given IV.
Potassium chloride should be diluted in dextrose 5% in water.
The client should be treated by giving potassium by IV bolus.
The Correct Answer is A
According to various guidelines12345, the recommended rate of intravenous potassium replacement is 10-20 mEq/h with continuous ECG monitoring. The maximum rate is 40 mEq/h in emergency situations. The prescription given by the provider exceeds this limit and could cause cardiac arrhythmias or hyperkalemia.
Choice B is wrong because potassium chloride is a common and appropriate formulation of potassium for intravenous administration.
Choice C is wrong because potassium chloride should not be diluted in dextrose 5% in water, as this could cause hyperglycemia or osmotic diuresis.
Choice D is wrong because potassium should never be given by IV bolus, as this could cause cardiac arrest or tissue necrosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Correct Answer is C
Explanation
Phenytoin is an anticonvulsant medication that can cause hypotension as an adverse effect when administered intravenously. The nurse should monitor the client’s blood pressure and heart rate during and after the infusion.
Choice Ais wrong because phenytoin does not cause bradycardia. Bradycardia is a slow heart rate that can result from beta blockers, calcium channel blockers, or digoxin toxicity.
Choice B is wrong because red man syndrome is an adverse reaction to vancomycin, not phenytoin.
Red man syndrome is characterized by flushing, itching, and rash on the face, neck, and upper torso.
Choice Dis wrong because phenytoin does not cause hypoglycemia. Hypoglycemia is a low blood glucose level that can result from insulin overdose, excessive exercise, or inadequate food intake.
Normal ranges for blood pressure are 90/60 mm Hg to 120/80 mm Hg. Normal ranges for heart rate are 60 to 100 beats per minute. Normal ranges for blood glucose are 70 to 110 mg/dL.
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