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Protein, Total, Random Urine

Alternative Names/Synonyms	Protein-Creatinine Ratio, PCR
Laboratory	Core Laboratory & Transfusion Medicine
Sub-section	Biochemistry
Specimen Type	Urine
Test Code	PROTR

Clinical Significance

Diagnosing and monitoring disease conditions characterized by proteinuria such as renal or heart diseases, or thyroid disorders. Typically interpreted normalized to creatinine in a random urine.

Specimen Requirements (Sample Type)

Urine

Specimen Requirements (Volume (mL))

5 mL

Specimen Requirements (Tube Type)

Sterile Urine Container
Clear Top Urine Tube
Collection Containers – Tube Types

Collection Requirements

Collection Instructions

Sample Stability

Room Temperature: 1 day

Fridge: 7 days @ 2-8°C

Freezer: 1 month @ -20°C

Cause for Rejection

Specimen Acceptability and Transport Guidance

Instrument, Methodology

Roche cobas c 702, immunoturbidimetric

Test Availability

24 hours a day, 7 days a week

STAT Turnaround Time

1 hour

Routine Turnaround Time

3 hours

Reference Ranges

Protein-Creatinine Ratio: <= 20 g/mol Creatinine

In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.

Laboratory Contact Information

416-586-4800 extension 4688