Log In

Term Description

Table 3 in this reference gives mean crown-rump length in mm for gestational ages 5 weeks and 3 days to 14 weeks and 0 days rather than estimating gestational age from crown rump length.

Part Description

LP19507-0   Gestational age
The age of the conceptus, beginning from the time of fertilization. In clinical obstetrics, the gestational age is often estimated as the time from the last day of the last menstruation which is about 2 weeks before ovulation and fertilization. Source: National Library of Medicine, MeSH 2006

Reference Information

TypeSourceReference
ArticleNCBI PubMedYeh HC, Rabinowitz JG. Amniotic sac development: Ultrasound features of early pregnancy--the double bleb sign. Radiology. 1988;166(1 Pt 1):97-103. Link to PubMed

LOINC Names Get Info

Fully-Specified Name
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Yeh 1988
Long Common Name
Gestational age estimated from Crown rump length on US by Yeh 1988 method
Short Name
GA from CRL.Yeh88

Part Model Get Info

  • Component
    Gestational age
    LP19507-0
    • Analyte
      Gestational age
      LP19507-0
      • Component Numerator
        Gestational age
        LP19507-0
        • Component Numerator Core
          Gestational age
          LP19507-0
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Time
    LP6879-3
  • Time
    Pt
    LP6960-1
  • System
    ^Fetus
    LP310004-9
    • System Core
      NULL
       
    • Super System
      Fetus
      LP6982-5
  • Scale
    Qn
    LP7753-9
  • Method
    US+Estimated from CRL.Yeh 1988
    LP6698-7

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 1.0j-a
Last Updated
Version 2.52 (MIN)
Order vs. Observation
Observation

Formula (Readable)

Look up table

Member of these Groups Get Info

LOINC GroupGroup Name
LG50112-8Gestational ageTime^Fetus

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Ηλικία κύησης:Time:Pt:^Έμβρυο:Qn:Υπερηχογράφημα+Εκτιμώμενο βάσει κεφαλουραίου μήκους.Yeh 1988
Synonyms: - OB.US Pt Qn Time Εκτιμώμενο Έμβρυο Ηλικία Ηλικία κύησης ΗΠΑ Υπερηχογράφημα+Εκτιμώμενο Υπερηχογράφημα+Εκτιμώμενο βάσει κεφαλουραίου μήκους Υπερηχογράφημα+Εκτιμώμενο βάσει κεφαλουραίου μήκους.Yeh 1988
es-ARSpanish (Argentina)US.ESTIMATED FROM CRL.YEH.88:tiempo:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM CRL.YEH.88
es-MXSpanish (Mexico)Edad gestacional:Tiempo:Punto temporal:^ Feto:Cuantitativo:US+Estimated from CRL.Yeh 1988
fr-BEFrench (Belgium)Age gestationnel:Durée:Temps ponctuel:^Foetus:Quantitatif:US.estimé sur CRL .Yeh 1988
it-ITItalian (Italy)Età gestazionale:Tempo:Pt:^feto:Qn:Ecografia.stimata da CRL.Yeh 1988
Synonyms: Eco Ecografia ostetrica Punto nel tempo (episodio) Tempo (e.g. secondi)
pt-BRPortuguese (Brazil)Idade gestacional:Tempo:Pt:^Feto:Qn:US.estimado pelo comprimento cAceça-nádega.Yeh.88
Synonyms: ; GA; Point in time; Random; Fet; Fetal; Quantitative; QNT; Quant; Quan; from CRL.Yeh88; 88; from CRL.Yeh88; Crown-Rump Length; US.est; predicted; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; Est; estimation; Gest; Gestation; Prenatal; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics
zh-CNChinese (China)孕龄:时间:时间点:^胎儿:定量型:超声+依据顶臀长的估计法.Yeh.88
Synonyms: 产科 产科.超声;产科.超声.印象与测量指标;产科学.超声;产科学.超声.印象与测量指标;产科学检查与测量指标.超声.印象与测量指标;产科学超声印象与测量指标 产科学 冠臀长 冠臀长度 受孕 受孕期 受孕期的 受孕的 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 坐高 妊娠 妊娠期的 妊娠的 怀卵 怀卵期 怀卵期的 怀卵的 怀孕 怀孕期 怀孕期的 怀孕的 时刻;随机;随意;瞬间 时间(如秒);时间(如秒数) 胎;超系统 - 胎儿 胎龄;Gestational Age;GA 胎龄估计法;孕龄估计法 胚胎学中反映胎儿身体状况的标准之一，用于测量第4周及以后的胚胎。一般从胎儿头部顶端量至臀部最低处,采用超声法测量。 超声.依据顶臀长的胎龄估计法.Yeh.88;超声.依据顶臀长的胎龄估计法.Yeh 1988;超声.依据顶臀长的胎龄估计法.Yeh88 超声.依据顶臀长的胎龄估计法;超声.依据CRL的胎龄估计法;超声.依据冠臀长的胎龄估计法;超声.依据头臀长的胎龄估计法 超声.胎龄估计法 超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法 顶臀长 顶臀长（Crown-Rump Length，CRL） 顶臀长度

Example Units

UnitSource
dExample UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=11915-6