Prealbumin, Serum
Also known as: PREALB
Use
The Prealbumin, Serum test measures the level of prealbumin, a protein produced by the liver, in the blood. It is used to assess nutritional status, identify protein-energy malnutrition, and monitor patients at risk for malnutrition. The test can also help in evaluating liver function and diagnosing certain types of inflammatory diseases.
Special Instructions
This test requires the collection of a serum sample, preferably from a fasting patient. After collection, the specimen should be allowed to clot completely at room temperature and serum should be separated from cells as soon as possible or within two hours. The serum or plasma should then be transferred to an ARUP Standard Transport Tube and stored refrigerated.
Limitations
The Prealbumin, Serum test may be influenced by factors such as inflammation, dehydration, and liver disorders. Hemolyzed specimens are unacceptable, as hemolysis can interfere with the accuracy of the results. Additionally, variations in prealbumin levels may not directly correlate with changes in nutritional status in all patients, particularly those with inflammatory conditions.
FDA ApprovedNew York Approved
Methodology
Immunoassay (Immunoturbidimetry)
Biomarkers
LOINC Codes
- 14338-8
- 14338-8
Result Turnaround Time
1 day
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection.
Patient Preparation
Fasting specimen preferred.
Storage Instructions
Refrigerated.
Causes for Rejection
Hemolyzed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 3 days |
| Refrigerated | 6 months |
| Frozen | 12 months |