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Test Code 0209 Microalbumin, Urine, 24 Hour

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Immunoturbidimetric Assay

Literature Reference:

Package insert: Microalbumin Tina-quant. Roche Corporation, 8/2014.

Specimen Requirements

Specimen Type: Urine, 24 hour
Container/Tube: Plain, brown urine container-Specimen collected in a container with either an acid or base is not acceptable.

Specimen Volume: Entire collection
Collection Instructions: No additive. Refrigerate specimen during collection.

Additional Information:

1. Starting and ending times of collection are required.

2. Follow instructions in Urine Collection in Special Instructions.

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: not available
Routine: results available the day of testing

Reference Values

In accordance with the American Diabetes Association (ADA) recommendations, the reference range for microalbumin analysis is: 1.0 - 29.9 mg/24 hours

Literature Reference:

Diabetes Care. 2010; 33: Supplement 1, S11-S61.

Test Classification and CPT Coding

81050-Volume measurement for timed collection

82043-Microalbumin

Additional Information

For BJH Laboratory Use Only

Analyte Stability:

Not established; performed upon receipt.

Specimen must be kept refrigerated during the collection and before delivery to limit bacterial growth.

Laboratory Processing Instructions:

Test performed in BJH Core Lab. Mix urine well. Record volume, period, and pH on request form. Using 13x100 test tubes, prepare a 7-mL aliquot and deliver to the automated line for centrifugation and delivery to Cobas 8000 for analysis. Completed specimen is stored refrigerated for 5 days.

Specimen Transport Temperature

Ambient

Special Instructions

LOINC Code Information

Name LOINC Code
Microalbumin ug/min in 24 hour urine 58448-2
Collection duration 13362-9
Volume of urine 19153-6