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ALPHA-1-ANTITRYPSIN QN

Test Code

235

CPT Code(s)

82103

Preferred Specimen(s)

1 mL serum

Minimum Volume

0.5 mL

Transport Container

Serum Separator Tube (SST)

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 90 days

Methodology

Nephelometry

Performing Laboratory

QUEST DIAGNOSTICS/NICHOLS SJC
33608 ORTEGA HWY
SAN JUAN CAPISTRANO CA 92675-2042

Setup Days

MONDAY - SATURDAY

Clinical Significance

Alpha-1-Antitrypsin level may be increased in normal
pregnancy and in several diseases including chronic
pulmonary disease; hereditary angioedema; renal, gastric,
liver and pancreatic diseases; diabetes; carcinomas and
rheumatoid diseases. Alpha-1-Antitrypsin may be decreased in
emphysema, hepatic cirrhosis, respiratory distress syndrome
of the newborn, nephrosis, malnutrition and cachexia. If a
deficiency is present, AAT phenotyping may be considered to
confirm heterozygous versus homozygous deficiencies.

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.