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PROTEIN, 24 HR URINE
Test CodeLAB441
Quest Code
11320
CPT Codes
84156
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
10 mL urine aliquot from a well-mixed, 24-hour collection - no preservative
Minimum Volume
2 mL
Other Acceptable Specimens
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Instructions
Record total volume and duration of collection on test requisition and urine vial
Transport Container
Plastic urine container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 5 days
Frozen: 30 days
Refrigerated: 5 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acidified urine
Methodology
Colorimetric (C) • Spectrophotometry (SP)
Setup Schedule
a.m. Mon-Sat
Report Available
3 days
Reference Range
<150 mg/24 h
Clinical Significance
Proteinuria, mainly glomerular, is often a manifestation of primary renal disease although transient proteinuria may occur with fevers, thyroid disorders, and in heart disease. In the absence of renal disease, the degree of proteinuria is slight, usually amounting to less than 2 grams per day. In chronic glomerulonephritis and in the nephrotic syndrome including lipoid nephrosis and in some forms of hypertensive vascular disease, protein loss may vary from a few grams to as much as 30 g/day.
Performing Laboratory
| Quest Diagnostics-Lenexa |
| 10101 Renner Blvd |
| Lenexa , KS 66219-9752 |
Last Updated: February 7, 2022
