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HelpTest Code RBR Retinol-Binding Protein, Random, Urine
Specimen Required
Container/Tube: Plastic, 5-mL tube
Specimen Volume: 5 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Children's Mercy Hospital
Note:
CMH COLLECTION: 5mL in sterile cup
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 7 days | |
| Frozen | 7 days |
Useful For
Assessing renal tubular injury or dysfunction using random urine collections
Screening for other tubular abnormalities
Detecting chronic asymptomatic renal tubular dysfunction.(2)
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Day(s) Performed
Monday, Wednesday, Friday
Report Available
1 to 4 daysReporting Name
Retinol-Binding Protein, Random, UReference Values
≥18 years: <190 mcg/g creatinine
Reference values have not been established for patients that are less than 18 years.
Method Name
CRETR: Enzymatic Colorimetric Assay
RBPR: Immunonephelometry
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83883-Retinol -Binding Protein, Random, U
82570-Creatinine, Random, U
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CRETR | Creatinine, Random, U | Yes, (Order RCTUR) | Yes |
| RBPR | Retinol-Binding Protein, Random, U | No | Yes |