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ALPHA 1-ANTITRYPSIN
Number 220
CPT Code 82103
Alias ALPHA 1-ANTITRYPSIN
Specimen Container SST
Specimen Type Serum
Turn Around Time 
Days Performed 
Reference Range 90-200 mg/dL
Alternate Specimen Red Top
Volume 1 mL Serum
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen 14 Days
Patient Preparation 

Overnight fasting is preferred.

Methodology 

Immunologic

Limitations 

α1AT may be elevated into normal range in heterozygous deficient patients during concurrent infection, pregnancy, estrogen therapy, steroid therapy, cancer, and during postoperative periods. Homozygous deficient patients will not show such elevation. Normal α1AT levels may occur in patients with liver disease who are heterozygotes. In normals, pregnancy and contraceptive medication may elevate levels. Levels are normally low at birth but rise soon thereafter.

Rejection Criteria 

Chylous serum

Additional Instructions 
Performing Laboratory Reference Laboratory
TagsPROTEASE, INHIBITOR

COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More