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ALPHA-1-ANTITRYPSIN (A1AT)
Test CodeLAB304157
CPT Codes
82103
Preferred Specimen
One 4.5 mL Light Green top tube
Minimum Volume
2 mL blood
Other Acceptable Specimens
Red and dark green top tube
Instructions
Sample must be centrifuged within 2 hours of collection. Plasma or Serum (non-gel tubes) must be removed from the red cells and put into aliquot tubes following centrifugation.
Required for testing: 1 mL serum
Required for testing: 1 mL serum
Transport Temperature
Refrigerated
Specimen Stability
Centrifuge within 2 hours after collection
Ambient: 3 months Refrigerated: 5 months Frozen: 3 months
Ambient: 3 months Refrigerated: 5 months Frozen: 3 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Turbid or lipemic specimens
Methodology
Immunoturbidimetric
Reference Range
<19 years old: no reference range established
≥ 19 years old: 90-200 mg/dL
≥ 19 years old: 90-200 mg/dL
Performing Laboratory
West Virginia University Hospital, Inc.
