| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
MICROALBUMIN, QUANTITATIVE, URINE, 24 HOUR
Test CodeMICA4
CPT Codes
82043 - 82570
Includes
Total volume, microalbumin raw, microalbumin 24 hour, microalbumin excreted, urine creatinine raw, urine creatinine 24 hour, and microalbumin/creatinine ratio 24 hour.
Preferred Specimen
24 Hour Urine Container without preservative
(aliquot or transferurine into a transfer tube and note the total volume)
(aliquot or transferurine into a transfer tube and note the total volume)
Minimum Volume
3 mL aliquot
Other Acceptable Specimens
Aliquotted sample submitted in a sterile urine cup will be accepted. Total volume must be provided.
Instructions
Mix the specimen well and measure the 24-Hour volume (RECORD THE TOTAL VOLUME); Pour off 20.0 mL of urine into a separate plastic screw-cap container; Refrigerate if not tested immediately.
Transport Temperature
Refrigerate
Specimen Stability
2-8°C up to 30 days; otherwise freeze at -20ºC or lower
Methodology
Turbidimetric
Setup Schedule
M, T, W, Th, F, Sa, Sun
Clinical Significance
The American Diabetes Association defines increased urine albumin ecretion as follows:
| Category | 24hr Collection (mg/24hr) | Timed Collection (µg/min) |
|---|---|---|
| Normal | <30 | <20 |
| Moderately Increased | 30-299 | 20-199 |
| Clinical Albuminuria | >= 300 | >= 200 |
Because of variability in urinary albumin excretion, ADA recommendations specify that 2-3 specimens, collected within a 3-6 month period, should exhibit abnormality prior to diagnostic consideration.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)
Last Updated: April 25, 2023
