The nurse is administering the sixth IV dose of gentamicin to a client with extensive full thickness burns. Which assessment finding warrants further intervention? Reference Range: White Blood Cell [5000 to 10,000/mm3 (5 to 10 x 10 %/L)] Blood Urea Nitrogen [10 to 20 mg/dL (3.6 to 7.1 mmol/L)] Creatinine [0.5 to 1.1 mg/dL (44 to 97 µmol/L)]

A. Serum creatinine level of 1.6 mg/dL (141 µmol/L), a blood urea nitrogen (BUN) of 20 mg/dL (7.1 mmol/L): Gentamicin is an aminoglycoside that is known for its nephrotoxic potential. Elevated serum creatinine and BUN levels are indicative of impaired kidney function, which warrants further investigation and possible intervention. This finding is significant because it may reflect kidney damage or reduced renal clearance of the drug. B. Reports a sore mouth and three episodes of diarrhea that began this morning: While these symptoms are important and could suggest a possible adverse effect or secondary infection, they are not as immediately concerning in the context of gentamicin therapy as the potential for kidney damage indicated by elevated creatinine and BUN levels. C. White blood count of 9,000/mm³ (9 x 10^9/L) and an oral temperature of 98.2°F (36.7°C) two hours ago: These values are within normal ranges and do not suggest an immediate concern related to gentamicin toxicity. D. Urinary output of 400 mL of clear, amber-colored urine in the past eight hours: While monitoring urinary output is important, this level of output does not necessarily indicate a problem in the context of gentamicin therapy compared to elevated creatinine and BUN levels.