CPT/HCPCS
82570, 84156, 84166
Order Code
CH492
Turnaround Time
24-48 hours
Test Includes
Protein Creatinine Ratio Random Urine
Specimen Requirements
Specimen Source
Urine
Transport Container
(Specimen Container)
(Specimen Container)
25 mL Urine
Preferred Specimens
Urine
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport at Room Temperature
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 4 days |
| Refrigerated | 5 days |
| Frozen | 30 days |
Reject Criteria
Acidified urine
Test Details
Methodology
Electrophoresis, Spectrophotometry (SP)_x000D_
Clinical Significance
Evaluate myeloma, macroglobulinemia of Waldenström, lymphoma, amyloidosis; differentiate between normal renal function, glomerular proteinuria, and tubular proteinuria. Increased glomerular permeability leads to higher concentrations of large proteins in the glomerular filtrate. Diminished tubular reabsorptive capacity results in a marked increase in urinary excretion of low molecular weight problems.
Reference Ranges
No Reference Range
