Due to albumin's functions, certain lab values require correction for<unk> 
Corrected serum calcium = (0.8 * (Normal Albumin - Pt's Albumin)) + Serum Ca
Corrected anion gap = anion gap + [ 2.5 × (4 - albumin, g/dL) ]
Corrected phenytoin level = measured phenytoin level / ( (adjustment x albumin, g/dL) + 0.1)
Adjustment = 0.275; in patients with creatinine clearance <20 mL/min, adjustment = 0.2.
Corrected serum calcium = (0.8 * (Normal Albumin - Pt's Albumin)) + Serum Ca
Corrected anion gap = anion gap + [ 2.5 × (4 - albumin, g/dL) ]
Corrected phenytoin level = measured phenytoin level / ( (adjustment x albumin, g/dL) + 0.1)
Adjustment = 0.275; in patients with creatinine clearance <20 mL/min, adjustment = 0.2.
Adjustment = 0.275; in patients with creatinine clearance <20 mL/min, adjustment = 0.2.
Hypoalbuminemia
Liver disease e.g. cirrhosis 
Proteinuria
Excess renal excretion e.g. nephrotic syndrome, glomerulonephritis
Abnormally colored urine
Excess bowel loss e.g. protein-losing enteropathy in Crohn's
Coagulopathy 
Burns 