Test Details
Methodology
Immunologic
Result Turnaround Time
3 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Use
Serum concentrations reflect the synthesis capacity of the liver and may indicate early malnutrition, acute and chronic hepatic disease, advanced chronic renal insufficiency, and cystic fibrosis. Assess nephritic syndrome and protein-losing enteropathy. Due to the short half-life of approximately 12 hours, RBP may be suitable for monitoring the nutritional status and efficacy of parenteral nutrition.1
Custom Additional Information
Responsible for binding and transporting retinol (vitamin A).
Specimen Requirements
Specimen
Serum or plasma
Volume
1 mL
Minimum Volume
0.4 mL
Container
Red-top tube, gel-barrier tube, or green-top (heparin) tube
Collection Instructions
Separate serum or plasma from red blood cells.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x3 |
Reference Range
See table.
Age | Range (mg/dL) |
|---|---|
0 to 12 y | 1.2−4.6 |
13 to 60 y | 1.6−6.1 |
61 to 80 y | 1.8−7.3 |
>80 y | 1.6−6.1 |
Storage Instructions
Room temperature
Causes for Rejection
Gross lipemia that cannot be clarified by ultracentrifugation; heat-inactivated samples
Footnotes
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 123060 | Retinol binding Protein(RbP) | 1836-6 | 123061 | Retinol Binding Protein(RbP) | mg/dL | 1836-6 |
| Order Code | 123060 | |||||
| Order Code Name | Retinol binding Protein(RbP) | |||||
| Order Loinc | 1836-6 | |||||
| Result Code | 123061 | |||||
| Result Code Name | Retinol Binding Protein(RbP) | |||||
| UofM | mg/dL | |||||
| Result LOINC | 1836-6 |