The nurse has identified the problem of Fluid Volume Excess for a client with chronic renal failure. The laboratory report indicates a serum sodium level of 120 mEq/L. The nurse interprets this finding as a/an: Reference range (135-145mEq/L)

A. elevated sodium level that must be reported to the healthcare provider immediately. A sodium level of 120 mEq/L is significantly lower than the normal reference range of 135 to 145 mEq/L. This value indicates severe hyponatremia, not an elevation in sodium concentration. While it must be reported due to the risk of neurological complications, the nurse must correctly identify the direction of the electrolyte imbalance. B. expected electrolyte abnormality in clients with chronic renal failure. While electrolyte imbalances are common in renal failure, a sodium level this low is a critical finding that requires intervention. Chronic kidney disease more typically presents with hyperkalemia or hyperphosphatemia due to impaired excretion. Severe hyponatremia is a complication of fluid management rather than an inherent, benign expectation of the disease process. C. possible hemodilution effect secondary to excessive water retention. In chronic renal failure, the kidneys lose the ability to excrete free water, leading to an expanded intravascular volume. This excess water dilutes the existing sodium in the blood, resulting in dilutional hyponatremia despite normal or increased total body sodium. The finding of 120 mEq/L directly correlates with the nurse's identification of Fluid Volume Excess. D. probable error in the laboratory analysis which needs to be repeated. While lab errors can occur, this result is highly consistent with the clinical picture of Fluid Volume Excess in a renal patient. The nurse should treat the value as accurate and assess the client for signs of water intoxication, such as confusion or seizures. Relying on a re-test without clinical correlation delays the necessary restriction of fluid intake.