A patient with acute kidney injury has the following labs: GFR 92mL/min BUN 17mg/dL potassium 4.9mEq/L creatinine 1mg/dL. The patient's 24 hour urinary output is 1.75 Liters, Based on these findings, what stage of AKI is this patient in?

A. Recovery: The recovery phase occurs when kidney function returns toward normal, with stabilization of GFR, BUN, creatinine, and electrolytes. Urine output is normal or near normal, reflecting restoration of renal excretory function. Monitoring continues to ensure full recovery and prevent relapse or complications. B. Oliguria: The oliguric phase is characterized by urine output less than 400 mL/day and elevated waste products. This patient’s urine output of 1.75 liters/24 hours is well above the oliguria threshold, indicating adequate renal output. C. Initiation: The initiation phase is the early period after kidney injury, marked by declining GFR and accumulating BUN and creatinine. Normal labs and urine output suggest the patient has progressed beyond this phase. D. Diuresis: The diuretic phase involves high urine output but typically persistent elevations in BUN and creatinine as the kidneys clear accumulated waste. Because this patient’s labs are already within normal limits, the diuretic phase has resolved, and the patient is in recovery.