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Test Code LAB4144 MICROALBUMIN/CREATININE RATIO, URINE

Specimen Type

Preferred Specimen: Transparent Red Top Tube
Alternative Specimen: Yellow Urine Tube, Sterile Container

Specimen Volume

10 mL

Minimum Volume

1 mL

Turnaround Time

STAT: 1 hour
Routine: 4 hours

Test Schedule

Daily

Sample Stability

Refrigerated: 3 days
Frozen: 5 months

Method

Colorimetric

Reference Ranges

Microalbumin, Random Urine: <18 mg/L

 

Creatinine, Random Urine (mg/dL):

Age Sex Range
0 up to 18 years Female None established
18 years and older Female 45.0 - 106.0 mg/dL
0 up to 18 years Male None established
18 years and older Male 58.0 - 161.0 mg/dL

 

Microalbumin/Creatinine Ratio: <30 mg/g

Less Than 30 mg/g Normal-Repeat yearly.

30-300 mg/g Increased risk for diabetic nephropathy. Two of three A/C ratios in this range indicate microalbuminuria

Greater Than 300 mg/g Two of three A/C ratios in this range confirms overt clinical nephropathy.

Synonyms

MALBCR, Microalbumin/Creatinine Ratio, Random

Test Components

Microalbumin, Random Urine, mg/L;

Creatinine, Random Urine, mg/dL;

Microalbumin/Creatinine Ratio, mg/g.

CPT Codes

82043, 82570