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The University of Chicago Medicine Laboratories

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Mayo Clinic Laboratories

Test Code A1AF Alpha-1-Antitrypsin, Random, Feces

Important Note

Use Epic test code A1ATS to order

This test is only for RANDOM collection. 

For timed collection:  Please order miscellaneous send out test: SNDOUT, type Mayo test code CA1A.  This test also requires a serum sample.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Fecal


Ordering Guidance


The preferred test for diagnosing protein-losing enteropathies is A1AFS / Alpha-1-Antitrypsin Clearance, Feces and Serum.



Specimen Required


Supplies:

-Stool container, Small (Random), 4 oz (T288)

-Stool Collection Kit, Random (T635)

Container/Tube: Stool container

Specimen Volume: 5 g

Collection Instructions: Collect a random fecal specimen.


Specimen Minimum Volume

Homogenized stool: 1 mL

Specimen Stability Information

Specimen Type Temperature Time
Fecal Frozen (preferred) 14 days
  Ambient  14 days
  Refrigerated  14 days

Reference Values

≤54 mg/dL

Day(s) Performed

Monday through Friday

CPT Code Information

82103

Report Available

1 to 3 days

Reject Due To

Collected in any preservative or fixative Reject

Method Name

Nephelometry

Secondary ID

182