A client with acute renal injury (AKI) weighs 110.3 pounds (50 kg) and has a potassium level of 6.7 mEq/L (6.7 mmol/L) is admitted to the hospital. Which prescribed medication should the nurse administer first?
Reference Range:
Potassium [3.5 to 5 mEq/L (3.5 to 5 mmol/L)]
Sodium polystyrene sulfonate 15 grams by mouth.
Sevelamer one tablet by mouth.
Calcium acetate one tablet by mouth.
Epoetin alfa, recombinant 2,500 units subcutaneously.
The Correct Answer is A
Choice A reason: Sodium polystyrene sulfonate is a medication that binds to excess potassium in the gastrointestinal tract and removes it from the body through feces. It is used to treat hyperkalemia, which is a high level of potassium in the blood. Hyperkalemia can cause cardiac arrhythmias and muscle weakness, and it is a common complication of AKI. Therefore, this medication should be administered first to lower the potassium level and prevent life-threatening complications.

Choice B reason: Sevelamer is a medication that binds to phosphorus in the gastrointestinal tract and removes it from the body through feces. It is used to treat hyperphosphatemia, which is a high level of phosphorus in the blood. Hyperphosphatemia can cause bone loss and soft tissue calcification, and it is a common complication of chronic kidney disease (CKD). However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Choice C reason: Calcium acetate is a medication that also binds to phosphorus in the gastrointestinal tract and removes it from the body through feces. It has the same effect and indication as sevelamer, but it also provides calcium supplementation. However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Choice D reason: Epoetin alfa, recombinant is a medication that stimulates the production of red blood cells in the bone marrow. It is used to treat anemia, which is a low level of hemoglobin or red blood cells in the blood. Anemia can cause fatigue, weakness, and shortness of breath, and it is a common complication of CKD and AKI. However, it is not an urgent issue in AKI, and it does not affect the potassium level.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Canned vegetables with additional table salt are not a good choice for someone with cholecystitis, because they are high in sodium, which can increase fluid retention and inflammation. However, this choice is not eliminated by the client, so it does not indicate successful teaching.
Choice B reason: Pasta with herbal butter and no meat sauce is a good choice for someone with cholecystitis, because it is low in fat and protein, which can trigger gallbladder contractions and pain. This choice is not eliminated by the client, so it does not indicate successful teaching.
Choice C reason: Citrus fruit and melon with a salt substitute are also good choices for someone with cholecystitis, because they are high in vitamin C and water, which can help dissolve gallstones and prevent infection. This choice is not eliminated by the client, so it does not indicate successful teaching.
Choice D reason: Whole milk and daily servings of ice cream are bad choices for someone with cholecystitis, because they are high in fat and cholesterol, which can worsen gallbladder inflammation and increase the risk of gallstone formation. This choice is eliminated by the client, so it indicates successful teaching.
Correct Answer is C
Explanation
Choice A reason: Restriction of caloric intake is not a good change for a client with diabetes mellitus and an upper respiratory infection, because it can lead to hypoglycemia and malnutrition. The client needs adequate calories to maintain blood glucose levels and support immune function. Therefore, this choice is incorrect.
Choice B reason: Fewer fingerstick glucose checks are not a good change for a client with diabetes mellitus and an upper respiratory infection, because they can lead to poor blood glucose control and complications. The client needs frequent monitoring of blood glucose levels to adjust insulin doses and prevent hyperglycemia or hypoglycemia. Therefore, this choice is incorrect.
Choice C reason: Higher doses of insulin are a good change for a client with diabetes mellitus and an upper respiratory infection, because they can help lower blood glucose levels and prevent ketoacidosis. The client needs more insulin to overcome the increased insulin resistance caused by the infection and the stress hormones. Therefore, this choice is correct.
Choice D reason: Increased oral fluid intake is a good change for a client with diabetes mellitus and an upper respiratory infection, but it is not directly related to blood glucose management. The client needs more fluids to prevent dehydration and clear mucus from the respiratory tract. Therefore, this choice is not the best answer.
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