The Liver Function Test (LFT) is a series of blood tests that help assess your liver health. It measures levels of enzymes, proteins, and bilirubin to identify liver damage, inflammation, obstruction, or disease.
| Test Parameter | Normal Range | Remarks |
|---|---|---|
| Bilirubin Total | 0.2 - 1.2 mg/dl | Elevated in jaundice |
| Bilirubin Direct | 0.0 - 0.3 mg/dl | Conjugated bilirubin |
| Bilirubin InDirect | 0.2 - 0.9 mg/dl | Unconjugated bilirubin |
| SGOT (AST) | 5 - 40 U/L | Liver & heart enzyme |
| SGOT (ALT) | 7 - 56 U/L | Liver-specific enzyme |
| Alkaline Phosphatase (ALP) | 40 - 129 U/L | Elevated in liver/bone issues |
| Total Protien | 6.0 - 8.3 g/dL | Main protien made by liver |
| Globulin | 2.0 - 3.5 g/dL | Calculated value |
| A:G Ratio | 1.2 - 2.2 | Lower ratio may indicate liver disease |
Note: Reference ranges may vary slightly between labs, age, and gender. Always consult your doctor for interpretation.
Fasting Requirement: Not mandatory, but a fasting sample (8–12 hours) is preferred for better accuracy.