ALB and acute kidney injury: • Diagnosis of AKI according to ICA AKI criteria• Cirrhosis with ascites• No response after two consecutive days of diuretic withdrawal and plasma volume expansion with albumin• Absence of shock• No current or recent use of nephrotoxic drugs (NSAIDs, aminoglycosides, iodinated contrast media, etc.)• No macroscopic signs of structural kidney injury, as followings:    • Absence of proteinuria (>500 mg/day)    • Absence of microhaematuria (>50 RBCs per high power field)    • Normal findings on renal ultrasonograpgy