Multiple inhalant allergen IgE Ab [Presence] in Serum by Immunoassay 70051-8
LOINC Code
| LOINC code | 70051-8 | ||
|---|---|---|---|
| name | Multiple inhalant allergen IgE Ab [Presence] in Serum by Immunoassay | ||
| description | This term was created for (but not limited to) Siemen's Immulite 2000 AlaTOP allergy screen, a chemiluminescent enzyme-labeled sequential immunoassay used to qualitatively detect IgE antibodies specific to inhalant allergens in serum. The AlaTOP constituents usually include the following 12 allergens: Dermatophagoides pteronyssinus (dust mite), cat epithelium, dog dander, Cynodon dactylon (Bermuda grass), Phleum pretense (timothy grass), Penicillium notatum, Alternaria tenuis, Ambrosia artemisiifolia (common ragweed), Plantago lanceolata (English plantain), Parietaria officinalis (wall pelitory), Betula papyrifera (paper birch), and Cryptomeria japonica (Japanese cedar) (Source: http://www.cdc.gov/niosh/hhe/reports/pdfs/2005-0248-3077.pdf) The Phadiatop assay has a fixed set of allergens that is not stated by the manufacturer (http://www.jiaci.org/issues/vol15issue02/7.pdf), but probably contains a similar subset of components. Test results are determined by the calculation of a signal to cutoff (S/CO) ratio, which is calculated automatically by the instrument. The results are reported as indeterminate (ratio between 0.9 and <1.1), reactive (ratio of >=1.1) and nonreactive (ratio of < 0.9). | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Multiple inhalant allergen Ab.IgE | ||
| property | PrThr = Present or threshold: The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold. | ||
| 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 = Serum | ||
| scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||
| method | IA = Immunoassay: Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage. | ||
Additional Names | |||
| short name | MIA IgE Ql IA | ||
Basic Attributes | |||
| class | ALLERGY | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.68 | ||
| last change type | MIN - change to field other than name | ||
| change reason | The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.; The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016. | ||
Related Names | |||
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