Alanine transaminase (ALT)
| Category | Biochemistry |
|---|---|
| Test background |
ALT is an enzyme involved in the metabolism of the amino acid alanine. ALT works in a number of tissues, but its highest concentrations are found in the liver. Injury to the liver results in release of the enzyme into the blood. |
| Clinical Indications |
Diagnosis and monitoring of liver impairment. Higher specificity than aspartate transaminase (AST) for liver damage, however AST correlates better with degree of organ damage. |
| Reference range | 0-34 U/L – Female 0-45 U/L – Male |
| Sample & container required | SST (gold top) |
| Sample volume | 0.5 mL |
| Turnaround time | 1 day |