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Alpha-1-Antitrypsin Clearance, Feces and Serum

Test ID: A1ATC

Test

Aliases/Synonyms

A1AT; A1-AT

Method

Nephelometry

Report Includes

Clearance; α-1-Antitrypsin Faecal; α-1-Antitrypsin Serum

Specimens

Feces + Serum

Test Location

Mayo Clinical Labs, Minnesota USA

Test Version

30-Sep-2019

Specimen

Specimens

Feces + Serum

Sample Volume

Serum: 1 mL!Feces: Entire collection

Minimum Volume

Serum: 0.5 mL!Feces: 1 mL homogenized

Specimen Comment

Both feces and serum are required.

Collection & Handling

Collection Instructions

Obtain stool collection kit from ICL. Blood must be drawn during the fecal collection period.

Handling Information

Feces and serum must be submitted together. Store and send frozen.

Additional Information

Obtain fecal collection kit from ICL and submit entire 24-hour collection. If no specimen is obtained in 24 hours, extend collection to 48 to 72 hours. Document collection period (duration) on container. Provide collection period (duration).

Stability

Ambient 14 days
Refrigerated 14 days
Frozen 14 days

Rejection Criteria

Other Use of any preservative/fixative

Test Version

30-Sep-2019

Performance / Interpretation

Method

Nephelometry

Turnaround Time

5 days

Results

Name Units Reference Range Conversion Factor
Clearance mL/24 h
  • ≤27
Fecal A1AT mg/dL
  • ≤54
Serum A1AT mg/dL
  • 100 - 190

Test Location

Mayo Clinical Labs, Minnesota USA

Test Version

30-Sep-2019

Interface / Setup

Test Version

30-Sep-2019