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Test Code 0176 Microalbumin, Urine, Random

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Immunoturbidimetric Assay

Note: #0169 Creatinine, Urine is performed on random specimens at an additional charge and an albumin/creatinine ratio is calculated.

Literature Reference:

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

Specimen Requirements

Specimen Type: Urine, random
Container/Tube: Urine Complete Cup Kit
Specimen Volume: 10 mL

Collection Instructions: No additive.
Additional Information: See Urine Collection in Special Instructions for additional information.

Day(s) Test Set Up

Monday through Sunday

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

Reference Values

The American Diabetes Association (ADA) recommends that an albumin/creatinine ratio be reported on all random urine specimens for microalbumin analysis. In accordance with ADA recommendations, the reference range for microalbumin analysis is:

<30 mcg/mg creatinine (microgram/milligram of creatinine)

Literature Reference:

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

Test Classification and CPT Coding

82043-Microalbumin

82570-Creatinine

Additional Information

For BJH Laboratory Use Only

Analyte Stability:

Not established; performed upon receipt.

Specimen must be kept refrigerated before delivery to limit bacterial growth.

Laboratory Processing Instructions:

Test performed in BJH Core Lab. Mix urine well. 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/Creatinine panel in random urine 34535-5