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Test Code 5146 Alpha-1-Antitrypsin

Performing Laboratory

Barnes-Jewish Hospital Laboratory


Immunoturbidimetric assay

Note: Phenotyping is not performed as an automatic reflex. For alpha-1-antitrypsin phenotyping, order #A1ALC Alpha-1-Antitrypsin Proteotype S/Z by LC-MS/MS.

Literature References:

Package insert: Tina-quant alpha1-antitrypsin AAT2. Roche Corporation. 07/2013.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: mint green

Specimen Volume: Full tube


Day(s) Test Set Up

Monday through Sunday 

Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt

Reference Values

90-200 mg/dL

Literature References:

Tietz Fundamental of Clinical Chemistry, 5th Edition, Chapter 21, p. 530. Saunders, 2014.



Test Classification and CPT Coding


Additional Information

For BJH Laboratory Use Only

Analyte Stability:

Store plasma at 2o C to 8o C for a maximum of 8 days. For longer storage or shipment, specimens should be frozen at -20o C.


Alternate Tube:  Plain red top, full


Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days. 

Specimen Transport Temperature


LOINC Code Information

Name LOINC Code
Alpha 1 antitrypsin 1825-9