LOINC
Version 2.71

33162-9Fetal Body weight US+Estimated from Hadlock 1991Active

Fully-Specified Name

Component
Body weight
Property
Mass
Time
Pt
System
^Fetus
Scale
Qn
Method
US+Estimated from Hadlock 1991

Additional Names

Short Name
EFW from Hadlock 1991

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 from gestational age: Ln (FW) (grams) = 0.578 + 0.332 MA - 0.00354 (MA2)SD = 12.7%Range: 10 -40 weeks

Reference Information

Type Source Reference
Article NCBI PubMed Hadlock FP, Harrist RB, Martinez-Poyer J. In utero analysis of fetal growth: a sonographic weight standard. Radiology. 1991 Oct;181(1):129-33. 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 Hadlock 1991 的估计法
it-ITItalian (Italy)
Peso corporeo:Massa:Pt:^feto:Qn:Ecografia.stimata da Hadlock 1991
pt-BRPortuguese (Brazil)
Peso fetal:Massa:Pt:^Feto:Qn:US.estimado pela tAcela Hadlock.91
es-ARSpanish (Argentina)
US.ESTIMATED FROM HADLOCK.91:masa:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM HADLOCK.91

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=33162-9