Prealbumin

Transthyretin PAB
Serum (SST) mg/L

About this test

Serum transport protein with a short half-life (~2 days). More sensitive than albumin for detecting acute changes in nutritional status or acute liver failure.

Reference Ranges

Sex Age Range Notes
All ≥ 18 yrs 200 – 400 Adult; <150 suggests protein depletion

Clinical Interpretation

Low / Decreased
Severe malnutrition, liver failure, acute-phase response (negative acute-phase protein), zinc deficiency.

Related Tests

Specimen
Serum (SST)
Reporting Unit
mg/L

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.