Protein/Creatinine Ratio, Urine

Cleveland Heartlab P, Test

CPT Code: 82570(x1), 84156(x1)
Order Code: C2707
Includes: Urine total protein, urine creatinine, calculated urine protein/creatinine ratio
ABN Requirement: No
Synonyms: Protein Creatinine Ratio; Urine Protein Creatinine Ratio
Specimen: Random Urine
Volume:  5.0 mL
Minimum Volume:  2.0 mL
Container: Urine (yellow top, no preservatives) tube


  1. Collect urine sample according to standard protocols.
  2. Transfer aliquot from a clean urine cup into a Yellow Top tube using the vacutainer transfer device included with the Yellow Top tube.
  3. Label sample according to standard protocols.

Transport: Store urine at 2-8°C after collection and ship sample the same day per packaging instructions provided with the Cleveland HeartLab shipping box.


Ambient (15-25°C): 1 day
Refrigerated (2-8°C):
6 days
Frozen (-20°C):
1 month
Deep Frozen (-70°C):
1 month

Causes for Rejection: Specimens other than random, preservative-free urine; improper labeling; samples not stored properly; samples older than stability limits; acidified urine

Methodology: Spectrophotometry (SP)

Turn Around Time: 2 days

Reference Range:

Protein/Creatinine Ratio

All Ages<0.2

Use: Proteinuria is characteristic of renal disease and concentrations may be increased with diabetes, hypertension, nephritic syndrome, and drug nephrotoxicity.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.