Microalbumin (MALB): CPT 82043

CPT Code: 

82043 

Specimen:

Urine 

Urine: 

10 mL aliquot 

Minimum Volume: 

1 mL aliquot 

Container:

Plastic urine container

Methodology:

Immunoturbidimetric

Collection: The following samples are acceptable:
1.  24-hour collection
2.  Overnight (8-12-hour) collection
3.  1 to 2-hour collection
4.  First-morning sample for simultaneous albumin and creatinine measurements.
Reference Range:  

Stability: 

Temperatures  Period 
Room Temperature  2 Days 
Refrigerated (8⁰C)  14 Days 
Frozen  Not recommended 

Use: 

This test is useful in the management of patients with relatively early diabetes mellitus to assist in avoiding or delaying the onset of diabetic renal disease. 

Clinical Significance: 

High microalbumin can be due to including infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension.  Physical exercise during the previous 24 hours and during the period of collection can also cause a transient elevation in microalbumin. 

Limitations: 

Because of the inherent day-to-day variability of albumin excretion into the urine, two of three microalbumin levels measured within a three-month to six-month period should be abnormal before considering a patient to have crossed a diagnostic threshold. 

Causes for Rejection:  Bloody specimen.