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Term Description

The interpretation of chromosome 18 aneuploidy (e.g., consistent with diploid, suspected trisomy or consistent with trisomy 18) based on non-invasive prenatal screening methods using cfDNA in maternal plasma.

Part Description

LP187146-8   Fetal chromosome 18 trisomy
Trisomy 18 risk refers to the fetus's risk of having trisomy 18. The risk can be estimated based on maternal age and prenatal genetic testing of fetal DNA.Trisomy 18, also called Edwards syndrome, is caused by the presence of three copies of chromosome 18 in each cell rather than two. Edwards syndrome is associated with intrauterine growth retardation and fetal demise, and liveborn infants with Edwards syndrome typically have low birth weight, congenital heart disease, and characteristic physical features. Less than 10% of liveborn infants with Edwards syndrome live past their first year. The general population risk of Edwards syndrome is 1 out of 5,000 live births, and the risk for Edwards syndrome increases with increasing maternal age. [MedlinePlus Condition: trisomy-18] Source: Regenstrief LOINC, GHR: Trisomy 18

LOINC Names Get Info

Fully-Specified Name
Fetal chromosome 18 trisomy:Imp:Pt:Plas.cfDNA:Ord:Dosage of chromosome specific cf DNA
Long Common Name
Fetal Chromosome 18 trisomy [Interpretation] based on Plasma cell-free DNA by Dosage of chromosome-specific cfDNA Qualitative
Short Name
Fet Chr 18 Ts Plas.cfDNA Ql
Display Name
Chr 18 trisomy Dosage of chromosome-specific cfDNA Ql (cfDNA) [Interp]
Consumer Name Alpha Get Info
Fetal Chromosome 18 trisomy

Part Model Get Info

  • Component
    Fetal chromosome 18 trisomy
    LP187146-8
    • Analyte
      Fetal chromosome 18 trisomy
      LP187146-8
      • Component Numerator
        Fetal chromosome 18 trisomy
        LP187146-8
        • Component Numerator Core
          Fetal chromosome 18 trisomy
          LP187146-8
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Imp
    LP6819-9
  • Time
    Pt
    LP6960-1
  • System
    Plas.cfDNA
    LP185795-4
  • Scale
    Ord
    LP7751-3
  • Method
    Dosage of chromosome specific cf DNA
    LP172871-8

Example Answer List: LL3142-8

Source: Laboratory Corporation of America
AnswerCodeScoreAnswer ID
Consistent with diploid chromosome 18LA21882-8
Borderline result suggestive of trisomy 18LA21883-6
Consistent with trisomy 13LA21890-1

Basic Attributes

Class
MOLPATH.TRISOMY
Type
Laboratory
First Released
Version 2.50
Last Updated
Version 2.73 (MIN)
Change Reason
Added "Fetal" to Component to clarify that the result is about the fetus.
Order vs. Observation
Observation
Common Test Rank Get Info
7476

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Fetální chromozom 18 trizomie:Interpretace:Časový bod:DNA volná cirkulující (cfDNA):Ordinální:Dávkování chromozomálně specifické cfDNA
el-GRGreek (Greece)Εμβρυική τρισωμία χρωμοσώματος 18:Imp:Pt:Πλάσμα.cfDNA:Ord:Δοσολογία ειδικού χρωμοσωμικού cf DNA
Synonyms: Imp MOLPATH MOLPATH.TRISOMY Ord Pt Δοσολογία ειδικού χρωμοσωμικού cf DNA Εμβρυική τρισωμία χρωμοσώματος 18 Πλάσμα Πλάσμα.cfDNA Χρωμόσωμα
es-ESSpanish (Spain)Trisomía cromosoma 18:Impresión/interpretación del estudio:Punto temporal:ADN en plasma libre de células:Ord:Dosificación de ADN ccf de cromosoma específico
es-MXSpanish (Mexico)Trisomía fetal del cromosoma 18:Impresión / interpretación del estudio:Punto temporal:ADN libre de células plasmáticas:Ordinal:Dosis de cfDNA cromosómico específico
fr-FRFrench (France)Chromosome 18 trisomie foetale:Interprétation:Ponctuel:Plasma avec ADN libre circulant:Qualitatif:Dosage d'ADN libre circulant spécifiques aux chromosomes
it-ITItalian (Italy)Cromosoma 18, trisomia:Imp:Pt:Plasma.DNA libero circolante:Ord:Dosaggio di DNA libero fetale circolante cromosoma specifico
Synonyms: DNA libero circolante nel plasma Dosaggio di DNA libero fetale circolante cromosoma Impressione/interpretazione di studio Patologia molecolare Plasma Punto nel tempo (episodio) Trisomia cromosoma genetica Trisomia del cromosoma 18
pl-PLPolish (Poland)Trisomia chromosomu 18 u płodu:ocena:punkt w czasie:osocze.cfDNA:uporządkowany:dawkowanie swoistego dla chromosomu pozakomórkowego DNA
Synonyms: wolnokrążące DNA w osoczu
zh-CNChinese (China)胎儿染色体 18 三体性:印象:时间点:血浆.cfDNA:序数型:染色体特异性 cfDNA 剂量测定
Synonyms: 三体型 三体细胞 三染色体性 三染色体细胞 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 分子病理学;分子病理学试验 分子病理学试验类.三体性（三体型） 印象是一种诊断陈述，始终是对其他某种观察指标的解释或抽象（一系列检验项目结果、一幅图像或者整个某位病人），而且几乎总是由某位专业人员产生。;检查印象;检查印象/解释;检查的印象/解释;检查解释;解释;阐释 时刻;随机;随意;瞬间 染色体二体型+染色体三体型 染色体特异性 cf DNA 剂量测定;染色体特异性游离循环 DNA 剂量测定;染色体特异性循环游离 DNA 剂量测定;Cell Free DNA 特异 特异性的 特异的 胎儿18号染色体三体型;18号染色体三体性;染色体 18 三体型 血浆循环 cfDNA;血浆循环 DNA;循环游离核酸;血浆游离 DNA;血浆无细胞 DNA;Free circulating/Cell-free DNA;Free circulating DNA

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