A nurse is discussing laboratory values associated with the renal system with a newly licensed nurse. Which of the following statements by the newly licensed nurse indicates an understanding of the values?
Creatinine levels are increased in clients who have acute kidney injury.
BUN is decreased in clients who have dehydration
Specific gravity is decreased in clients who have hypovolemia.
Potassium levels are increased in clients who have polyuria.
The Correct Answer is A
A. Creatinine levels rise in acute kidney injury due to impaired kidney function, as the kidneys are unable to effectively filter creatinine from the blood.
B. BUN (blood urea nitrogen) levels typically increase in dehydration due to reduced kidney perfusion, leading to decreased urine output and increased concentration of waste products in the blood.
C. Specific gravity increases in hypovolemia because urine becomes more concentrated as the body tries to conserve water.
D. Potassium levels may vary depending on the cause of polyuria, but polyuria itself does not necessarily cause hyperkalemia. It can be caused by various factors including diabetes insipidus or diabetes mellitus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Placing the client in Trendelenburg position is not appropriate in this situation. It may worsen respiratory depression caused by magnesium sulfate.
B. Absent deep-tendon reflexes and respiratory depression are signs of magnesium toxicity.
Discontinuing the medication infusion is essential to prevent further toxicity.
C. While preeclampsia can lead to complications necessitating emergency cesarean birth, the immediate concern here is addressing magnesium toxicity.
D. Assessing maternal blood glucose is not relevant to the management of magnesium toxicity.
Correct Answer is B
Explanation
A. Normal calcium levels are not indicative of hypoparathyroidism.
B. A manifestation of hypoparathyroidism would be a high phosphate level due to the low production of parathyroid hormone, which is responsible for regulating calcium and phosphate levels. It leads to reduced phosphate excretion.
C. Low magnesium levels are not indicative of hypoparathyroidism.
D. Normal vitamin D levels are not indicative of hypoparathyroidism.
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