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HelpTest Code LAB115 Prealbumin (PAB), Transthyretin, Serum
Methodology
Immunoturbidimetric
Literature Reference:
Package insert: Prealbumin reagent PREA. Roche Corporation 2025/02.
Performing Laboratory
Barnes-Jewish Hospital Laboratory
Specimen Requirements
Specimen Type: Serum
Container/Tube: Plain red top
Specimen Volume: Full tube
Pediatric collection volume: 2.0 mL - minimum 1.0 mL
Specimen Transport Temperature
Ambient
Reference Values
20-40 mg/dL
Prealbumin has been shown to be useful in the assessment of nutritional states particularly in monitoring the response to nutritional support in the acutely ill patient. The short half-life of prealbumin (approximately 2 days) makes it a sensitive indicator of any changes affecting its synthesis or catabolism.
Literature References:
Package insert: Prealbumin reagent PREA. Roche Corporation 2019/08.
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt
Test Classification and CPT Coding
84134
Additional Information
For BJH Laboratory Use Only
Analyte Stability:
See Analyte Stability Chart.
Laboratory Processing Instructions:
Test performed in BJH Core Lab. Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.
LOINC Code Information
| Name | LOINC Code |
| Prealbumin | 14338-8 |