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| 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 # |
Albumin, Timed Urine
Test Code8280
Preferred Specimen
Urine collected in Sterile Cup
Minimum Volume
2 mL
Other Acceptable Specimens
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
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.
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
Refrigerated: 14 days
Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acid preserved urine
Methodology
Turbidometric
Setup Schedule
Mon-Sat
Report Available
2 days
Reference Range
| 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.
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.
