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HelpTest ID RPTU1 Protein/Creatinine Ratio, Random, Urine
Specimen Required
Patient Preparation: Specimens should be collected before fluorescein is given or not collected until at least 24 hour later.
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Container/Tube: Plastic vial
Specimen Volume: 4 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
3. Invert well before taking 4 mL aliquot.
4. Do not over fill aliquot tube, 4 mL at most.
Secondary ID
614004Useful For
Evaluation of renal disease
Screening for monoclonal gammopathy
Specimen Type
UrineSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 14 days |
| Frozen | 30 days | |
| Ambient | 24 hours |
Reject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Reference Values
≥18 years: <0.18 mg/mg creatinine
Reference values have not been established for patients younger than 18 years of age.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84156
82570
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 dayForms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Kidney Transplant Test Request
-Renal Diagnostics Test Request (T830)