A nurse is phoning a provider to report a client’s serum potassium of 6.2 mEq/L. Which of the following medications should the nurse expect the provider to prescribe?
Potassium iodide.
Lactulose.
Sodium polystyrene sulfonate.
Acetylcysteine.
The Correct Answer is C
Choice A rationale
Potassium iodide is used to treat hyperthyroidism and protect the thyroid gland from radiation, but it does not help lower serum potassium levels.
Choice B rationale
Lactulose is a laxative used to treat constipation and hepatic encephalopathy, but it does not affect serum potassium levels.
Choice C rationale
Sodium polystyrene sulfonate is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, thereby lowering serum potassium levels.
Choice D rationale
Acetylcysteine is used as a mucolytic agent and to treat acetaminophen overdose, but it does not have any effect on serum potassium levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Kernig’s sign is associated with meningitis, not hypocalcemia. It involves pain and resistance when attempting to extend the leg at the knee while the hip is flexed.
Choice B rationale
Brudzinski’s sign is also associated with meningitis, not hypocalcemia. It involves involuntary lifting of the legs when lifting a patient’s head.
Choice C rationale
Chvostek’s sign is a clinical sign of hypocalcemia. It involves twitching of the facial muscles in response to tapping over the facial nerve.
Choice D rationale
Cullen’s sign is associated with acute pancreatitis and involves bruising around the umbilicus. It is not related to hypocalcemia.
Correct Answer is C
Explanation
Choice A rationale
Warm extremities are not typically associated with peripheral arterial disease (PAD). PAD usually results in reduced blood flow, leading to cooler extremities.
Choice B rationale
Darkened skin color near extremities is more commonly associated with venous insufficiency rather than PAD. PAD typically causes pale or bluish skin due to reduced blood flow.
Choice C rationale
Intermittent claudication, which is pain or cramping in the legs during exercise that subsides with rest, is a hallmark symptom of PAD. It occurs due to reduced blood flow to the muscles during activity.
Choice D rationale
Edema is more commonly associated with venous insufficiency or heart failure rather than PAD. PAD typically causes reduced blood flow, not fluid accumulation.
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