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Test ID RCTUR Creatinine, Random, Urine

Useful For

Calculation of creatinine clearance, a measure of renal function, when used in conjunction with serum creatinine

 

Normalization of urinary analytes by creatinine concentration to account for the variation in urinary concentrations between subjects

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Supplies: Urine Tubes, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 6 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.


Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 30 days
  Frozen  30 days
  Ambient  14 days

Reference Values

≥18 years old: 16-326 mg/dL

 

Reference values have not been established for patients who are <18 years of age.

CPT Code Information

82570

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Forms

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)

Secondary ID

610603

Day(s) Performed

Monday through Sunday

Report Available

1 to 3 days