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PROTEIN, TOTAL W/CREAT,24 HOUR URINE

Test Code

757

CPT Code(s)

82570
84156

Preferred Specimen(s)

10 ML ALIQUOT FROM A WELL-MIXED, 24 HOUR COLLECTION
NO PRESERVATIVES

INSTRUCTIONS:
RECORD TOTAL VOLUME AND DURATION OF COLLECTION ON
TEST REQUEST FORM AND URINE VIAL

Minimum Volume

2 ML

Alternative Specimen(s)

YELLOW-TOP, BLUE FILL LINE URINALYSIS TRANSPORT TUBE

Transport Container

PLASTIC URINE CONTAINER

Transport Temperature

ROOM TEMPERATURE

Specimen Stability

ROOM TEMPERATURE: 4 DAYS
REFRIGERATED: 5 DAYS
FROZEN: 30 DAYS

Methodology

Colorimetric (C) • Spectrophotometry (SP)

Reference Range(s)

Protein, Total, 24-Hour Urine <150 mg/24 h
Protein/Creatinine Ratio ≤84 mg/g creat
Creatinine, 24-Hour Urine  
<36 Months Not established
3-8 Years 0.11-0.68 g/24 h
9-12 Years 0.17-1.41 g/24 h
13-17 Years 0.29-1.87 g/24 h
>17 Years 0.63-2.50 g/24 h

Clinical Significance

Urinary total proteins are negligible in healthy individuals. Concentrations are increased in patients with a wide variety of disease that impair renal function including diabetes, hypertension, nephritic syndrome, and drug nephrotoxicity.

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

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.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.