Alpha-1-Antitrypsin Clearance, Quantitative by ELISA, Timed Stool
Ordering Recommendation
Enzyme-Linked Immunosorbent Assay/Quantitative Immunoturbidimetry
Mon, Wed, Fri
1-3 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Stool: Entire 24-, 48-, or 72-hour stool collection. Refrigerate during collection. Provide patient a Timed Stool Collection Kit (ARUP supply #44192). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.
AND Serum: Serum separator tube (SST) or Plasma: Plasma separation tube (PST). Also acceptable: Lavender (EDTA) or pink (K2EDTA). 
Specimen Preparation
Stool: Refer to instructions in Stool Collection-Timed Specimens (24, 48, 72 Hours) under Specimen Handling at Submit entire stool collection in an ARUP approved transport container(s) provided in kit using additional containers as needed for the full collection (available separately, ARUP supply #28077). (Min: 5 g)
Serum or Plasma: Collect blood during the stool collection time interval. Allow serum to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 0.5 mL to an ARUP Standard Transport Tube. (Min: 0.2 mL) 
Storage/Transport Temperature
Unacceptable Conditions
Stool: Specimens in media or preservatives. Serum or Plasma: Hemolyzed. 
Stool: Ambient: 24 hours; Refrigerated: 7 days; Frozen: 3 months
Serum or Plasma: Ambient: 1 week; Refrigerated: 3 months; Frozen: 3 months (avoid freeze/thaw cycles) 
Reference Interval
Test Number
Reference Interval
 Alpha-1-Antitrypsin Stool-Clearance1 - 49 mL/24h
2011041Alpha-1-Antitrypsin, Quantitative by ELISA, Random Stool0.00 - 0.50 mg/g
0050001Alpha-1-AntitrypsinEffective November 17, 2014
90-200 mg/dL

Interpretive Data

Compliance Statement D: For laboratory tests using a manufactured RUO kit. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

If serum or plasma specimen is not submitted in conjunction with a timed stool collection, order Alpha-1-Antitrypsin, Quantitative by ELISA, Random Stool (ARUP test code 2011041).
Hotline History
Component Test Code*Component Chart NameLOINC
2011042Alpha-1-Antitrypsin Stool, ELISA25303-9
2011044Alpha-1-Antitrypsin Stool, ELISA-Time13363-7
2011045Alpha-1-Antitrypsin Stool, ELISA-Weight30078-0
2011047Alpha-1-Antitrypsin Stool-Clearance18271-7
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.