Retinol Binding Protein
Also known as: RBP
Use
The Retinol Binding Protein test is useful as an indicator of nutritional status, specifically in assessing conditions such as malnutrition, acute and chronic hepatic disease, advanced chronic renal insufficiency, or cystic fibrosis. It is also utilized to evaluate nephrotic syndrome and protein-losing enteropathy. This test aids in the diagnosis and monitoring of these conditions by measuring the concentration of retinol binding protein, a carrier for vitamin A, in the blood.
Special Instructions
It is important to separate serum from cells as soon as possible or within 2 hours of collection for accurate results. The serum must then be transferred to an ARUP Standard Transport Tube for transportation.
Limitations
This test may not provide accurate results if the specimen is contaminated, hemolyzed, or severely lipemic. Therefore, it is crucial to ensure proper specimen quality. Certain clinical conditions or medications that affect liver function or vitamin A metabolism may also influence test results and should be considered when interpreting the test outcome.
FDA ApprovedNew York Approved
Methodology
Other
Biomarkers
LOINC Codes
- 1836-6
Result Turnaround Time
1-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
ARUP Standard Transport Tube
Collection Instructions
Separate serum from cells ASAP or within 2 hours of collection. Transfer to ARUP Standard Transport Tube.
Storage Instructions
Refrigerated.
Causes for Rejection
Contaminated, hemolyzed, or severely lipemic specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 hours |
| Refrigerated | 1 week |
| Frozen | 3 months |