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, Total, with Creatinine, 24-Hour Urine
Test Code757
CPT Codes
82570, 84156
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL of a well-mixed unpreserved 24-hour urine, submitted in a plastic leak-proof urine container
Minimum Volume
2 mL
Other Acceptable Specimens
24-hour unpreserved urine, submitted in Urinalysis Transport Tube (yellow-top, blue fill line, preservative) tube
Instructions
Please submit 10 mL aliquot from a well-mixed 24-hour urine, no preservative. 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
Set up: Sun-Fri; Report available: 1-3 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
14225 Newbrook Drive
Chantilly, VA 20153