Laboratory examination plasma albumin concentration Normal: >35g/L; Diagnose: 25g/L v Serum Pre-albumin concentration Normal: 150- 296mg/L; Mild deficiency: 100 150mg/L; Moderate: 50 w 100mg/L; Severe: <50mg/L Y Urine hydroxy-proling concentrationLaboratory examination ✓ plasma albumin concentration Normal: >35g/L; Diagnose:< 25g/L ✓ Serum Pre-albumin concentration Normal: 150～296mg/L; Mild deficiency: 100～150mg/L; Moderate:50～100mg/L; Severe:<50mg/L ✓ Urine hydroxy-proling concentration