Most abundant plasma protein, synthesised exclusively by the liver. Marker of synthetic function and nutritional status. Half-life ~20 days so reflects chronic rather than acute changes.
| Sex | Age | Range | Notes |
|---|---|---|---|
| All | ≥ 18 yrs | 35 – 50 | Adult |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.