| 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, 24 Hr Urine
MessageTest performed at York Hospital Laboratory.
Test Code
UPRO24
CPT Codes
84156
Includes
- Total Volume
Protein, 24-Hour Urine
Preferred Specimen
5 mL aliquot of a well mixed 24-hour urine, submitted in a plastic leakproof container
Instructions
Collect without preservative.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 4 hours
Refrigerate: 24 hours
Frozen: 3 months
Refrigerate: 24 hours
Frozen: 3 months
Methodology
Colorimetric
Setup Schedule
Daily
Report Available
Next Day
Limitations
As in all dye based methods, the underestimation of protein may occur in urine samples containing immunoglobulin light chains (i.e. Bence-Jones protein). Where such samples are suspected, they should be further analyzed by electrophoresis.
Reference Range
| Protein, Urine | < 14 mg/dl |
| Protein, 24 Hour Urine | 28 - 141 mg/day |
Clinical Significance
The presence of elevated concentrations of protein in urine (proteinuria) is a key finding in primary renal disease of glomerular, tubular, or mixed origin. Proteinuria is also seen in patients with systemic disorders that affect the kidneys such as diabetes mellitus, hypertension, vascular disease, neoplasia, drug toxicity, and certain infectious diseases. Proteinuria may also exist as either a benign or transient condition.
