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Protein Creatinine Ratio Random Urine

CPT/HCPCS 82570, 84156
Order Code CH254
Turnaround Time 24-48 hours
Test Includes

Protein Creatinine Ratio Random Urine

Specimen Requirements
Specimen Source
Transport Container
(Specimen Container)

Urinalysis transport tube

Preferred Specimens
Collection Instructions
(Transport Temperature)
Transport Refrigerated (cold packs)
Specimen Stability
Temperature Period
Room temperature Unacceptable
Refrigerated 7 days
Frozen 30 days
Reject Criteria

Acidified urine

Test Details
Turbidimetric, Spectrophotometry
Clinical Significance

Protein in urine is normally composed of a combination of plasma-derived proteins that have been filtered by glomeruli and have not been reabsorbed by the proximal tubules and proteins secreted by renal tubules or other accessory glands. Increased amounts of protein in the urine may be due to: -Glomerular proteinuria: caused by defects in permselectivity of the glomerular filtration barrier to plasma proteins (eg, glomerulonephritis or nephrotic syndrome) -Tubular proteinuria: caused by incomplete tubular reabsorption of proteins (eg, interstitial nephritis) -Overflow proteinuria: caused by increased plasma concentration of proteins (eg, multiple myeloma, myoglobinuria).

Reference Ranges

≤ 200 mg/g creatinine