A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Protein/Creatinine Ratio, Urine, 24HR
Test CodeLAB5210331
Quest Code
757
CPT Codes
82570, 84156
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL 24-hour urine collected in a 24-hour urine container
Minimum Volume
2 mL
Instructions
Record 24-hour urine volume on test request form and urine vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 5 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acidified urine
Methodology
Colorimetric (C) • Spectrophotometry (SP)
Setup Schedule
Night Sets up 6 days a week.
Report Available
Reports in 2 to 3 days.
Reference Range
Protein, Total, 24 Hr Ur | <150 mg/24 h |
Protein/Creatinine Ratio
Male | <100 mg/g creat |
Female | <150 mg/g creat |
Protein/Creatinine Ratio
Male | <0.100 mg/mg creat |
Female | <0.150 mg/mg creat |
Creatinine, 24-Hour Urine
<3 Years | Not established |
3-8 Years | 0.10-0.80 g/24 h |
9-12 Years | 0.20-1.40 g/24 h |
13-17 Years | 0.40-1.90 g/24 h |
>17 Years | 0.50-2.15 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.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130