93419-0
LOINC Code
| LOINC code | 93419-0 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| name | |||||||||||||||||
| description | An alpha-1-antitrypsin (A1AT or abbreviated as A1A) clearance profile includes results for A1AT levels in serum and 24 hour stool specimen (otherwise 48 or 72 hours, depending on time it takes to collect a stool specimen), as well as the overall A1AT clearance result. Testing is performed to diagnose protein-losing enteropathies. Elevated A1AT clearance (above 50 mL/24 hours) suggests excessive gastrointestinal protein loss. | ||||||||||||||||
| status | ACTIVE | ||||||||||||||||
Fully-Specified Name | |||||||||||||||||
| component | Alpha 1 antitrypsin fecal clearance panel | ||||||||||||||||
| property | - | ||||||||||||||||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||||||||||||||||
| system | Ser/Plas+Stool Ser = Serum Plas = Plasma Stool = Stool = Fecal | ||||||||||||||||
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||||||||||||||||
| method | |||||||||||||||||
Additional Names | |||||||||||||||||
| short name | A1; A1A; A1AT; A-1-AT; A1-AT; A1AT Cl Pnl; AAT; Alfa; Alpha-1-antitrypsin.total; Alpha-1-protease inhibitor; Alpha-1-proteinase inhibitor; Alpha-1-trypsin inhibitor; Bowel movement; Chemistry; Cl; Clear; Clearanc; Clearances; Clr; Faecal; Faeces; Fecal; F | ||||||||||||||||
Basic Attributes | |||||||||||||||||
| class | PANEL.CHEM | ||||||||||||||||
| type | 1 Laboratory | ||||||||||||||||
| order vs. observation | A1AT Cl Pnl Ser | ||||||||||||||||
Panel Components | |||||||||||||||||
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History/Usage | |||||||||||||||||
| first released | |||||||||||||||||
| last updated | 2.67 | ||||||||||||||||
| last change type | ADD - added | ||||||||||||||||
Related Names | |||||||||||||||||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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