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Albumin, 24-Hour Urine without Creatinine
Test Code4555
CPT Codes
82043
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
5 mL aliquot from a well-mixed 24-hour urine, submitted in a plastic leak-proof container - no preservative
Minimum Volume
2 mL
Instructions
Submit 5 mL aliquot from a well-mixed 24-hour urine, submitted in a plastic, leakproof container.
Do not use preservatives. Record 24-hour urine volume on test request form and urine container
Do not use preservatives. Record 24-hour urine volume on test request form and urine container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 1 year
Refrigerated: 14 days
Frozen: 1 year
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acid preserved urine
Methodology
Turbidimetric
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
| Albumin, 24-hour Ur | <30 mg/24 h |
| Albumin, 24-hour Ur | <20 mcg/min |
Clinical Significance
Albumin excreted in the urine (Microalbumin) is a sensitive marker of nephropathy. It is used to screen for early renal disease in diabetic patients.
