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Test Code N.MALBCREAT MICROALBUMIN:CREATININE RATIO RANDOM

Important Note

Optimal urine sample should be fresh and free of particulates

Urine creatinine is included in random/ "spot" testing to correct for variations in hydration.

Additional Codes

MALBCREAT

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Random Urine

Container: Leakproof plastic urine container

Specimen Collection: 10 mL (minimum 3 mL)

  1. 10 mL aliquot of random urine; midstream collection preferred.
  2. Store and transport refrigerated.

Specimen Rejection

Grossly bloody urine

Turbid urine that does not clear with centrifugation

Maximum Laboratory Time

24 - 48 hours

Specimen Transport/Stability

Refrigerated: 6 days

Test Classification and CPT Coding

82043

82570

Day(s) Test Set Up

Daily

Reference Ranges

 

Microalbumin, Random Urine mg/L
  5.1 - 20.0
Creatinine, Random Urine mg/dL
  80.00 - 170.00
Microalbumin/Creatinine Ratio  
Normal Ratio. Repeat yearly. < 30
Increased risk for diabetic nephropathy. Two of three MALB:CRE ratios in this range indicate microalbuminuria and diabetic nephropathy.  > 30 - 300
Two of three MALB:CRE ratios in this range confirms overt clinical nephropathy.  > 300

* Exercise within 24 hrs, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.