A client has been admitted to the hospital with oliguric acute renal failure. In the oliguric phase, what changes in laboratory data would the nurse anticipate in this client?
A. Renal function indices return to baseline levels.
B. Serum BUN, creatinine, and potassium levels and metabolic acidosis increase.
C. A transient rise in BUN, creatinine, and potassium levels is followed by metabolic alkalosis.
D. The BUN level starts to fall and continues to fall as creatine and potassium levels rise.
B
The oliguric phase of acute renal failure is characterized by the accumulation of nitrogenous wastes, resulting in increasing levels of serum BUN, creatinine, and potassium and a bicarbonate deficit (metabolic acidosis).
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