LOINC
Version 2.71

11941-2Gestational age estimated from Tibia length on US by Jeanty 1984 methodActive

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

Fully-Specified Name

Component
Gestational age
Property
Time
Time
Pt
System
^Fetus
Scale
Qn
Method
US+Estimated from tibia length.Jeanty 1984

Additional Names

Short Name
GA from tib len.Jeanty84

Basic Attributes

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

Formula (Readable)

GESTATIONAL AGE [wk] = 10.055043 + 0.31317668 * (tibia length [mm]) + 0.0016814056 * (tibia length [mm]) ^ 2

Reference Information

Type Source Reference
Article NCBI PubMed Jeanty P, Rodesch F, Delbeke D, Dumont JE. Estimation of gestational age from measurements of fetal long bones. J Ultrasound Med. 1984;3(2):75-79. Link to PubMed

Member of these Groups

LG50112-8 Gestational ageTime^Fetus

Language Variants Get Info

zh-CNChinese (China)
孕龄:时间:时间点:^胎儿:定量型:超声+依据胫骨长度的估计法.Jeanty.84
fr-BEFrench (Belgium)
Age gestationnel:Durée:Temps ponctuel:^Foetus:Quantitatif:US.estimé sur longueur tibia .Jeanty 1984
it-ITItalian (Italy)
Età gestazionale:Tempo:Pt:^feto:Qn:Ecografia.stimata da lunghezza tibia.Jeanty 1984
pt-BRPortuguese (Brazil)
Idade gestacional:Tempo:Pt:^Feto:Qn:US.estimado pelo comprimento da tíbia.Jeanty.84
es-ARSpanish (Argentina)
US.ESTIMATED FROM TIBIA LENGTH.JEANTY.84:tiempo:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM TIBIA LENGTH.JEANTY.84

Example Units

Unit Source
d Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=11941-2