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Test Code LAB743 Protein/Creatinine Index, Random Urine

Useful For

  • Evaluation of renal disease
  • Screening for monoclonal gammopathy

Methodology

Turbidimetric/Kinetic Alkaline Picrate (Jaffe)/Bichromatic Rate

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Urine

Container/Tube: Clean container

Specimen Volume: 10 mL

Collection Instructions:

  1. Collect a random urine collection.
  2. No preservative.
  3. Centrifuge specimen before analysis.

Specimen Transport Temperature

Refrigerated

Specimen Stability

 

Specimen Type Temperature Time
Urine Ambient 2 hours
  Refrigerated 4 days
  Frozen 1 month

Reference Values

Protein/Creatinine Index: 0.0-0.2

 

Ratios greater then 3.0 indicate nephrotic proteinuria.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82570-Creatinine

84156-Protein