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Test Code Urine, Microalbumin and Creatinine Ratio Urine, Microalbumin and Creatinine Ratio

Aliases

Random urine microalbumin and creatinine ratio, Microalbumin and Creatinine Ratio Urine

Patient Preparation

No special patient preparation required

Collection Method

Sterile urine collection

Minimum Volume

  • Adults: 0.4 mL
  • Pediatric: 0.25 ml

Container

Sterile Urine Cup

Preferred Specimen

Sterile Urine Cup

Acceptable Specimens

Urine

Reference or Target Ranges

<30

Reportable Units

mg of albumin per g of creatinine

Critical Value

Not defined for this assay

Reasons for Rejection

 

 

Hemolysis Threshold 400 mg/dL
Icterus Threshold 50 mg/dL
Lipemia Threshold 3000 mg/dL
Other QNS, contaminated, improperly labeled, improper specimen type

 

 

Specimen Stability

 

 

Ambient 7 days
Refrigerated (4°C to 8°C) 3 months
Frozen(-40°C to 0°C) 6 months

 

 

Performance Information

 

 

Days and Time Performed 24/7
Expected Turn Around Time Stat: 1 hour
Routine: 4 hours
Stat Availability Yes
Performing Bench UH Chemistry
Methodology/Method Description Roche Cobas – Immunoturbidimetric assay

 

 

Additional Information/Important Notes

Microalbuminuria 30-300 mg/g of creatinine
Clinical albuminuria >300 mg/g of creatinine

CPT Codes

82043;82570