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Test Code
A1ATS
Test Name
Alpha-1-Antitrypsin Clearance, Stool
CPT Codes
82103 X 2
Included Tests
  • Alpha-1-Antitrypsin
  • A1A Stool-Clearance
  • Alpha-1-Antitrypsin Stl, ELISA
  • A1A Stool, ELISA-Weight
Expected Turnaround Time
12 - 15 days
Specimen and Container Info

Specimen Type: 24, 48, or 72-hour stool AND Serum 

Alternate Specimen Type: 24, 48, or 72-hour stool AND Plasma 

 

Collection Container: Timed Stool Collection Kit AND Gold Top, Serum Separator 

Alternate Collection Container: Timed Stool Collection Kit AND White Top (EDTA), Lavender Top (EDTA) or Pink Top (EDTA)

 

Desired Specimen Volume: Entire timed collection AND 0.5 mL serum 
Collection Instructions

Test requires both stool and blood specimens.

  1. Collect stool via 24, 48, or 72 hour collection and keep refrigerated in a Timed Stool Collection Kit.
  2. Collect a gold top serum separator tube via venipuncture during the stool collection time interval.
Processing and Submission Instructions
  1. Transport stool in the original collection container(s).
  2. Write time frame of stool collection on the collection container(s).
  3. Separate serum from cells within 2 hours of collection.
  4. Transfer 0.5 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions

Transport to laboratory frozen.
Stability Requirements

Room Temperature

Stool: 24 hours

Serum or Plasma: 7 days

Refrigerated

Stool: 7 days

Serum or Plasma: 3 months

Frozen

3 months
Causes for Rejection
  • Stool: specimens in media or preservatives
  • Serum or Plasma: hemolyzed
Methodology
Enzyme-Linked Immunosorbent Assay/Quantitative Immunoturbidimetry
Reference Intervals

See patient report.
Alternate Names
  • A1A Clearance Stool/Ser
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Varies
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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