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MICROALBUMIN-CREATININE RATIO

Order Flexilab
MALBCR   MCUC
 
Synonyms
Microalbumin/Creatinine Ratio, Urine
SPECIMEN REQUIREMENTS
Container Type
Leakproof plastic urine container or 24 hour dark plastic urine container
Specimen Type
Random, first morning or 24 hour urine collection
Preferred Volume
40 mL
Minimum Volume
3 mL
Collection Procedure
40 mL aliqout of random, first morning or 24 hour urine collection in a leakproof plastic urine container for random specimens or a 24 hour dark plastic urine container for 24 hour collections. Refrigerate during collection.
Stability
Refrigerated 2 weeks  
Alternate Specimens
Urines preserved in the boric acid tubes (BD C&S tubes)
Limitations
Optimal urine sample should be free of contaminants including red blood cell contamination.
Department
PAML Chemistry
CPT Codes
82043, 82570
Test Schedule
Mon-Sat
Turnaround Time
1-2 days
Method
Immunoturbidimetric, Enzymatic (IDMS Traceable), Calculation
Test Includes
Microalbumin, Random Urine, mg/L; Creatinine, Random Urine, mg/dL; Microalbumin/Creatinine Ratio, mg/g
Reference Ranges
Title#Ranges##Units
Microalbumin, Urine Random|LT 18||mg/L
Creatinine, Urine Random|19-311||mg/dL
Microalbumin/Creatinine Ratio|||mg/g
|LT 30|Normal-Repeat yearly|
|30-300|Increased risk for diabetic nephropathy. Two of three A/C ratios in this range indicate microalbuminuria|
|GT 300|Two of three A/C ratios in this range confirms overt clinical nephropathy|
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