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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, 24-Hour Urine without Creatinine
Test CodeMICROA
Includes
CPT code 81050 may be added at an additional charge for volume measurement
Preferred Specimen
5 mL urine aliquot from a well mixed 24-hour urine collection - no preservative
Minimum Volume
2 mL
Other Acceptable Specimens
Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Instructions
Specify 24-hour total volume 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
Turbidimetric
Setup Schedule
Day shift Tues-sun
Report Available
2 days
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.