A client with chronic kidney disease (CKD) is receiving calcium acetate 667 mg PO. A decrease in which blood value indicates to the nurse that the medication is having the desired effect?
Potassium.
Calcium.
Phosphate.
pH.
The Correct Answer is C
Choice A reason:
Calcium acetate is not used to lower potassium levels. Potassium levels in the blood are typically managed through dietary restrictions, medications like potassium binders, and dialysis in patients with CKD. The normal range for blood potassium levels is 3.5 to 5.2 mEq/L for adults.
Choice B reason:
Calcium acetate can increase calcium levels in the blood, not decrease them. It is important to monitor calcium levels to avoid hypercalcemia, which can lead to complications such as vascular calcification and cardiac issues. The normal range for blood calcium levels is 8.6 to 10.2 mg/dL.
Choice C reason:
Calcium acetate is used to lower phosphate levels in patients with CKD. It works by binding to dietary phosphate in the intestines, forming insoluble calcium phosphate that is excreted in the stool. This helps prevent hyperphosphatemia, a common issue in CKD patients. The normal range for blood phosphate levels is 2.5 to 4.5 mg/dL.
Choice D reason:
Calcium acetate does not directly affect blood pH levels. Blood pH is regulated by the kidneys and lungs, and the normal range is 7.35 to 7.45. While CKD can affect acid-base balance, calcium acetate’s primary role is to manage phosphate levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Teaching the client about foods high in calcium is important, but it is not the most immediate action required. A serum calcium level of 5.5 mg/dL is significantly below the normal range (8.5-10.2 mg/dL) and indicates severe hypocalcemia. While dietary education is beneficial for long-term management, the nurse must first address the acute issue by notifying the healthcare provider.
Choice B reason:
Beginning to taper the drug dose per protocol is not appropriate without consulting the healthcare provider. Methylprednisolone, a corticosteroid, can cause decreased calcium absorption and increased calcium excretion. However, any changes to the medication regimen should be directed by the healthcare provider, especially in the context of severe hypocalcemia.
Choice C reason:
Notifying the healthcare provider of the finding is the most critical action. Severe hypocalcemia can lead to serious complications such as cardiac arrhythmias, muscle spasms, and seizures. Immediate medical intervention is necessary to correct the calcium imbalance and prevent potential life-threatening conditions.
Choice D reason:
Administering the medication with a glass of milk is not sufficient to address the severe hypocalcemia. While milk contains calcium, the amount is not enough to correct a serum calcium level as low as 5.5 mg/dL. The nurse must prioritize notifying the healthcare provider to ensure appropriate treatment is initiated.
Word count: 500 words.
Correct Answer is D
Explanation
Choice A reason: While it is true that breastfeeding is not recommended while taking isotretinoin due to the potential for adverse effects on the infant, this is not the most critical information for a client planning to become pregnant. The primary concern is the teratogenic effects of isotretinoin, which can cause severe birth defects.
Choice B reason: Advising the client not to take multiple vitamins that contain vitamin A while on isotretinoin is important because excessive vitamin A can increase the risk of toxicity. However, this is not the most crucial information for someone planning to become pregnant. The teratogenic risks of isotretinoin are a higher priority.
Choice C reason: Obtaining baseline liver function results is necessary during isotretinoin therapy due to the potential for hepatotoxicity. Regular monitoring helps ensure the liver is functioning properly. However, this information is secondary to the need to avoid pregnancy while on isotretinoin due to its severe teratogenic effects.
Choice D reason: Discontinuing isotretinoin one month before attempting to conceive is the most important information. Isotretinoin is highly teratogenic and can cause serious birth defects. It is crucial to stop the medication well before conception to ensure it is completely cleared from the body, reducing the risk of harm to the fetus.
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