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Test Code 32B Microalbumin Creatinine Ratio Urine

Additional Codes

MLAB: MACRU

PowerChart: Microalbumin + Creatinine Urine

Epic: LAB689 Microalbumin/Creatinine Urine Ratio

MA Cerner: Urine Microalbumin/Creatinine.

Test Method

UCL:

Microalbumin: Turbidimetric Immunoassay; Beckman DXC600/DXC880i

Creatinine: Jaffe Rate; Beckman DXC600/DXC880i

MA:

Microalbumin: Turbidimetric Immunoassay; Siemens Xpand

Creatinine: Jaffe Rate; Siemens Xpand

Specimen Requirement

2 mL random urine is required.

Additional Specimen Collection Information

Collect a random urine specimen in a plastic container. No preservative required. Label the tube with patient name and 2 forms of identification (a patient ID number and DOB). Store the urine specimen refrigerated and transport to the lab within 48 hours.

Labs submitting specimens to UCL should aliquot 10 ml and send in a plastic transport tube. Label the tube with patient name and 2 forms of identification (a patient ID number and DOB). Store the urine specimen refrigerated and transport to the lab within 48 hours.

Performance

UCL:

Testing is performed Monday through Sunday.

Typically completed within 4 hours after the specimen arrives at the testing site.

MA:

Testing is performed as specimens are received in the lab.

Routine: Typically completed within 4 hours after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

Microalbumin: < 1.9 mg/dL

Creatinine: Not established for random specimens; results are subject to interpretation by the clinician.

Microalbumin Creatinine Ratio: <30 mg/g

CPT Code Information

82043 Chemistry: Albumin, urine, microalbumin; quantitative

82570 Chemistry: Creatinine; other source

Useful For

Assessing the potential for early onset of nephropathy in diabetic patients

LOINC Code Information

34535-5 Microalbumin/Creatinine Panel In Random Urine