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Specimen Requirements
Preferred:
Container/Tube: Random Urine Collection
Minimum Volume: 7 mL Random Urine
Collection Instructions: Bloody urine should not be used.
Specimen Stability
Refrigerate: 48 hours
Frozen: aliquot for longer storage
Reference Range
Reference Range:
Males: <17 mg/g creatinine
Females: <25 mg/g creatinine
Microalbuminuria is defined as an albumin:creatinine ratio of 17 to 299 for males and 25 to 299 for females.
A ratio of albumin:creatinine of 300 or higher is indicative of overt proteinuria.
Methodology
Immuno-Turbidimetry
CPT
82570, 82043
Test Alias
Urine Albumin Random
Microalbumin
Urine Microalbumin/creatinine
uACR
Albumin/Creatinine Ratio, Urine
Lab Handling
Urine samples should be mixed well and cleared of turbidity or particulate matter by centrifugation prior to testing. Bloody urine should not be used.