A nurse is monitoring a client who is dehydrated. Which of the following laboratory findings should the nurse report to the provider?

A. Hematocrit is within the normal range, indicating that red blood cell concentration is currently adequate, so it does not require reporting. B. BUN is elevated at 25 mg/dL. In the context of dehydration, an increased BUN reflects hemoconcentration and reduced renal perfusion. This finding should be reported to the provider because persistent elevation can indicate worsening dehydration or early kidney impairment, which may require intervention such as fluid replacement or further assessment of renal function. C. Creatinine is within normal limits, suggesting that kidney filtration is currently adequate. Monitoring should continue, but it does not require immediate action. D. Urine specific gravity of 1.028 indicates concentrated urine, which is expected in dehydration, but it remains within the upper normal limit and does not require urgent reporting.