A nurse is reviewing the BUN and creatinine levels of an older adult client who has chronic kidney disease. The nurse should expect which of the following findings?
BUN 45 mg/dL and creatinine 8 mg/dL
BUN 8 mg/dL and creatinine 0.7 mg/dL
BUN 10 mg/dl and creatinine 0.3 mg/dl
BUN 23 mg/dl and creatinine 1.0 mg/dl
The Correct Answer is A
A. These values indicate elevated BUN (blood urea nitrogen) and creatinine levels indicating impaired kidney function, typical findings in chronic kidney disease.
B. These are the normal BUN and creatinine levels hence are not indicative of chronic kidney disease.
C. These values are within the normal BUN and creatinine levels hence are not indicative of chronic kidney disease.
D. These are normal BUN and creatinine levels and are not indicative of chronic kidney disease.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. In primary hypothyroidism, the thyroid gland fails to produce sufficient thyroid hormone.
Consequently, free T4 levels are typically decreased.
B. Although serum T3 levels may also decrease in primary hypothyroidism due to impaired thyroid function, TSH is the primary marker used for diagnosis and monitoring.
C. Similarly, serum T4 levels may decrease in primary hypothyroidism due to decreased synthesis by the thyroid gland.
D. In primary hypothyroidism, the anterior pituitary gland releases more TSH to stimulate the thyroid gland to produce thyroid hormones. Therefore, elevated TSH levels are characteristic of primary hypothyroidism.

Correct Answer is D
Explanation
A. Metabolic Alkalosis, Partially Compensated, is incorrect because there is no evidence of respiratory compensation (normal PaCO2).
B. Respiratory Acidosis, Partially Compensated, is incorrect because the pH is high, not low as would be expected in acidosis, and the PaCO2 is normal, not high.
C. Respiratory Alkalosis, Uncompensated, is incorrect because the primary problem is metabolic (high HCO3), not respiratory, and the PaCO2 is normal, not low as would be seen in respiratory alkalosis.
D. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. In this scenario, the pH is elevated (7.5) and the bicarbonate (HCO3) level is high (34 mmol/L), indicating alkalosis. Vomiting leads to loss of gastric acid (hydrochloric acid), causing metabolic alkalosis. The respiratory system has not yet compensated fully for the alkalosis, as indicated by the normal PaCO2 (40 mm Hg).
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