RAST class [Presence] in Serum 6934-4
LOINC Code
| LOINC code | 6934-4 | ||
|---|---|---|---|
| name | RAST class [Presence] in Serum | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | RAST class | ||
| 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 | SemiQn | ||
| method | |||
Additional Names | |||
| short name | RAST class | ||
Basic Attributes | |||
| class | ALLERGY | ||
| type | 1 Laboratory | ||
| order vs. observation | Observation | ||
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 | |||
| test rank | 13308 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.75 | ||
| last change type | MAJ - change to name field other than Component; | ||
| change reason | The Property has been changed from ACnc to Threshold to reflect the new model for ordinal terms where results are based on a cut-off value.; 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 Answer list type has been changed from 'Normative' to 'Example' due to the variability of the calibrator and the number of classes. Some labs use a low calibrator of 0.1 KU/L and include an additional 0/1 class, while other labs have continued with the 0.35 KU/L calibrator and have only 7 classes. | ||
Related Names | |||
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