Version 2.77

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

Type Source Reference
Article NCBI PubMed Daya S. Accuracy of gestational age estimation by means of fetal crown-rump length measurement. Am J Obstet Gynecol. 1993 Mar;168(3 Pt 1):903-8. Link to PubMed

Fully-Specified Name

Gestational age
US+Estimated from CRL.Daya 1993

Additional Names

Short Name
GA from CRL.daya93

Basic Attributes

First Released
Version 2.09
Last Updated
Version 2.70
Order vs. Observation

Formula (Readable)

Gestational age from Crown Rump Length: GA (days) = 40.447 + 1.125 (CRL) - 0.0058 (CRL2)CRL is in mm

Member of these Groups Get Info

LOINC Group Group Name
LG50112-8 Gestational ageTime^Fetus

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) US.ESTIMATED FROM CRL.DAYA.93:tiempo:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM CRL.DAYA.93
es-MX Spanish (Mexico) Edad gestacional:Tiempo:Punto temporal:^ Feto:Cuantitativo:US+Estimated from CRL.Daya 1993
fr-BE French (Belgium) Age gestationnel:Durée:Temps ponctuel:^Foetus:Quantitatif:US.estimé selon CRL.Daya 1993
it-IT Italian (Italy) Età gestazionale:Tempo:Pt:^feto:Qn:Ecografia.stimata da CRL.Daya 1993
Synonyms: Eco Ecografia ostetrica Punto nel tempo (episodio) Tempo (e.g. secondi)
pt-BR Portuguese (Brazil) Idade gestacional:Tempo:Pt:^Feto:Qn:US.estimado pelo comprimento cAceça-nádega.Daya.93
Synonyms: ; GA; Point in time; Random; Fet; Fetal; Quantitative; QNT; Quant; Quan; from CRL.daya93; 93; from CRL.daya93; Crown-Rump Length; US.est; predicted; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; Est; estimation; Gest; Gestation; Prenatal; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics
zh-CN Chinese (China) 孕龄:时间:时间点:^胎儿:定量型:超声+依据顶臀长的估计法.Daya.93
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.Daya.93;超声.依据顶臀长的胎龄估计法.Daya 1993;超声.依据顶臀长的胎龄估计法.Daya93 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

Unit Source
d Example UCUM Units

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