Microalbumin is a topic covered in the Davis's Lab & Diagnostic Tests.

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Albumin, urine.

To assist in the identification and management of early diabetes in order to avoid or delay onset of diabetic associated kidney disease.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction. Either a random or a 24-hr urine collection may be ordered. As appropriate, provide the required urine collection container and specimen collection instructions.

Normal Findings
Method: Immunoassay.

TestConventional and SI Units
24-hr microalbumin to creatinine ratioLess than 30 mg/g creatinine/24 hr
24-hr microalbumin
 NormalLess than 30 mg/24 hr
 Microalbuminuria30–299 mg/24 hr
 Clinical albuminuria300 mg or greater/24 hr
The American Diabetes Association (ADA) recommends annual measurement of microalbumin (spot or 24-hr, as requested by the health-care provider [HCP]) with serum creatinine (Cr) and estimated glomerular filtration rate (eGFR). Numerous factors, such as hydration status, the presence of an infection, or significant hyperglycemia, can produce falsely increased or decreased microalbumin levels. The National Kidney Foundation defines microalbuminuria as equal to or greater than 30 mg/g Cr/24 hr based on eGFR measurements.

Critical Findings and Potential Interventions

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