Home
HelpTest Code LAB743 Protein / Creatinine Ratio, Urine
Includes:
Creatinine U, Protein U and Protein/Creatinine Ratio
Collection:
Specimen: Urine, Random
Container: Random Urine - 10 mL Yellow Top Plastic Urine No Additive Tube. BD# 364979
Volume: 10 mL
Stability:
Ambient: 8 Hours
Refrigerated (preferred): 1 Week
Frozen: 2 Weeks
Turn Around Time (TAT):
STAT: 1 HOUR
Routine: 4 HOURS
Test Availability:
24 hours a day / 7 days a week
Reference Interval:
Protein U: No established reference range.
Creatinine U: No established reference range.
Protein/Creatinine U:
| Age | Reference Range |
|---|---|
| < 18 years | No established reference range |
| 18 years - 83 years |
< 160.00 mg/g (Female) < 110.00 mg/g (Male) |
| > 83 years | No established reference range |
Interpretive Data:
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)
Low-grade proteinuria may be seen in inflammatory or neoplastic processes involving the urinary tract.
Additional Test Codes
Pr/C Ratio
Performing Laboratory Section
Chemistry / UMC MAIN LABORATORY