Table 4.

Grading system and representative management strategies for acute renal failure

Grades	Definition	Management strategies
Grade A	Increase in serum creatinine level of ≥ 0.3 mg/dL from the baseline or 1.5 to 2-fold increase from the baseline	Dehydration
	Urinary output of less than 0.5 mL/kg per hour for more than 6 h	Diuretics
Grade B	Two-fold increase in the serum creatinine level from the baseline	Continuous mannitol + diuretics
	Urinary output of less than 0.5 mL/kg per hour for more than 12 h
Grade C	Dialysis treatment required (serum K > 6.0 mEq, BE < -10, uremia, hypouresis that lasts for more than three days)	Hemodialysis