LOINC
Version 2.71

33144-7Fetal Body weight estimated on US by Tokyo 1987 methodActive

Fully-Specified Name

Component
Body weight
Property
Mass
Time
Pt
System
^Fetus
Scale
Qn
Method
US+Estimated from Tokyo 1987

Additional Names

Short Name
EFW by Tokyo87

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 2.09
Last Updated
Version 2.70
Order vs. Observation
Observation

Formula (Readable)

Estimated Fetal Weight: EFW = 1.07 * BPD^3 + 3.42 * APAD * TAD * FL; Published Inputs: BPD 3.1 - 10.0 cm, APAD 5 - 15 cm, TAD 5 - 15 cm, FL 1 - 8 cm

Reference Information

Type Source Reference
Article NCBI PubMed Shinozuka N, Okai T, Kohzuma S, Mukubo M, Shih CT, Maeda T, Kuwabara Y, Mizuno M. Formulas for fetal weight estimation by ultrasound measurements based on neonatal specific gravities and volumes. Am J Obstet Gynecol. 1987 Nov;157(5):1140-5. Link to PubMed

Member of these Groups

LG50068-2 Body weight|Mass|^Fetus|ANYMethod

Language Variants Get Info

zh-CNChinese (China)
体重:质量:时间点:^胎儿:定量型:超声+依据Tokyo的估计法.87
it-ITItalian (Italy)
Peso corporeo:Massa:Pt:^feto:Qn:Ecografia.stimata da Tokyo 1987
pt-BRPortuguese (Brazil)
Peso fetal:Massa:Pt:^Feto:Qn:US.estimado pela tAcela Tokyo.87
es-ARSpanish (Argentina)
US.ESTIMATED FROM TOKYO.87:masa:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM TOKYO.87

Example Units

Unit Source
kg Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33144-7