ATI Nur27500 Pathopharm Exam | Nurselytic

Correct Answer: C

Rationale: The correct answer is C: Serum creatinine. Serum creatinine is a reliable indicator of renal function as it reflects the glomerular filtration rate (GFR). In clients with SLE, renal involvement is common, so monitoring creatinine levels helps assess kidney function. Elevated creatinine levels indicate impaired renal function, while normal levels suggest normal renal function.

A: Urine-specific gravity is more indicative of hydration status and concentrating ability of the kidneys, not a direct measure of renal function.
B: Serum potassium levels can be affected by various factors, including renal function, but they are not the best indicator of overall renal function.
D: Serum sodium levels are more related to fluid balance and hydration status, not specifically renal function.

In summary, serum creatinine is the best choice as it directly reflects renal function, while the other options are not as specific to kidney function in the context of SLE.

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