Fetal Chromosome 13+18+21 trisomy [Presence] based on Plasma cell-free DNA by Dosage of chromosome-specific cfDNA 75975-3
LOINC Code
| LOINC code | 75975-3 | ||
|---|---|---|---|
| name | Fetal Chromosome 13+18+21 trisomy [Presence] based on Plasma cell-free DNA by Dosage of chromosome-specific cfDNA | ||
| description | Indicates the presence of trisomy 13, 18 and/or 21 based on noninvasive prenatal screening methods using cell-free DNA (cfDNA) in maternal plasma. Result does not differentiate which trisomy is suspected or detected, if present. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Fetal chromosome 13+18+21 trisomy | ||
| 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 | Plas.cfDNA | ||
| scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||
| method | Dosage of chromosome specific cf DNA | ||
Additional Names | |||
| short name | Fet Chr 13+18+21 Ts Plas.cfDNA Ql | ||
Basic Attributes | |||
| class | MOLPATH.TRISOMY | ||
| 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 | |||
| test rank | 7604 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.73 | ||
| 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.; Changed Order_Obs from 'Observation Only' to 'Both' to fit current order use cases.; Added "Fetal" to Component to clarify that the result is about the fetus. | ||
Related Names | |||
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