Laboratory Test Information Guide

Details for Alpha 1-Antitrypsin, Serum/Plasma

Test Name: Alpha 1-Antitrypsin, Serum/Plasma
Alternate Name(s): Alpha Protease Inhibitor
Laboratory: Clinical Immunology
Specimen Type: Adult:
5 mL Gold top Vacutainer tube

Pediatric:
0-2 years: 0.5 mL Red or Gold top Microtainer
2-10 years: 3 mL Red top Vacutainer tube

Light Green (Li-Heparin) or Lavender (EDTA) top tubes are also acceptable
Collection Information: Minimum volume of serum or plasma required is 360 ÁL for adult samples or 150 ÁL for pediatric samples.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Monday-Friday
0800-1600
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
5 days
Stat
N/A
 
Reference Range: 0.90-2.00 g/L
Effective Date: 2010-01-11
Revised Date: 2020-05-25
Critical Value:  
Interpretive Comments: Patients with homozygous deficiency of alpha 1-antitrypsin usually have levels less than 0.6 g/L.

Levels rise in acute phase reaction.
Special Processing:  
Comments:  
Method of Analysis: Turbidimetry
Critical Information Required:  
Storage & Shipment: Store and ship serum or plasma refrigerated. Frozen serum or plasma is also acceptable.
System Codes: 
Cerner
A1AT
 
Referred To:  

Questions? Comments? Contact Laura Gopaul