Albumin, Timed Urine
Test Code
8280
82043
In-home collection is not available in your area through Quest Mobile.
Clinical Significance
Albumin, Timed Urine - Albumin excreted in the urine (Microalbumin) is a sensitive marker of nephropathy. It is used to screen for early renal disease in diabetic patients.
Test Resources
None found for this test
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Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Test Details
Methodology
Turbidometric
Reference Range(s)
| Albumin, Excretion Rate | <20 mcg/min |
The ADA defines abnormalities in albumin excretion as follows:
| Category | Result (mcg/min) |
| Normal | <20 |
| Microalbuminuria | 20-199 |
| Clinical albuminuria | ≥200 |
The ADA recommends that at least two of three specimens collected within a 3-6 month period be abnormal before considering a patient to be within a diagnostic category.
Preferred Specimen(s)
5 mL urine aliquot from a well-mixed timed urine collection - no preservative
Alternative Specimen(s)
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Minimum Volume
2 mL
Collection Instructions
Specify total volume and duration of collection on container and test requisition.
Note: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.
Transport Container
Plastic urine container
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 14 days
- Frozen: 6 months
Reject Criteria
Acid preserved urine
Setup Schedule
5 mL urine aliquot from a well-mixed timed urine collection - no preservative
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
2 mL
Specify total volume and duration of collection on container and test requisition.
Note: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.
Note: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.
Plastic urine container
Room temperature
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 6 months
Refrigerated: 14 days
Frozen: 6 months
Acid preserved urine