33123-1

Gestational age estimated from Inter ocular distance on US by Trout 1994 method

Active

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	Trout T, Budorick NE, Pretorius DH, McGahan JP. Significance of orbital measurements in the fetus. J Ultrasound Med. 1994 Dec;13(12):937-43. Link to PubMed

LOINC Names Get Info

Fully-Specified Name: Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from IOD.Trout 1994
Long Common Name: Gestational age estimated from Inter ocular distance on US by Trout 1994 method
Short Name: GA from IOD.Trout94

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
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
^Fetus
LP310004-9
- System Core
  NULL
- Super System
  Fetus
  LP6982-5
Scale
Qn
LP7753-9
Method
US+Estimated from IOD.Trout 1994
LP32358-1

Basic Attributes

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

Formula (Readable)

Gestational age from Inter Orbital Diameter diameter: IOD (mm) = - 4.14 + 0.94 (GA) - 0.007 (GA2) GA is in weeks

Member of these Groups Get Info

LOINC Group	Group Name
LG50112-8	Gestational ageTime^Fetus

Language Variants Get Info

Tag	Language	Translation
el-GR	Greek (Greece)	Ηλικία κύησης:Time:Pt:^Έμβρυο:Qn:Υπερηχογράφημα+Εκτιμώμενο βάσει IOD.Trout 1994 Synonyms: - OB.US Pt Qn Time Εκτιμώμενο Έμβρυο Ηλικία Ηλικία κύησης ΗΠΑ Υπερηχογράφημα+Εκτιμώμενο Υπερηχογράφημα+Εκτιμώμενο βάσει IOD.Trout 1994
es-AR	Spanish (Argentina)	US.ESTIMATED FROM IOD.TROUT.94:tiempo:punto en el tiempo:^feto:cuantitativo:US.ESTIMATED FROM IOD.TROUT.94
es-MX	Spanish (Mexico)	Edad gestacional:Tiempo:Punto temporal:^ Feto:Cuantitativo:US+Estimated from IOD.Trout 1994
fr-BE	French (Belgium)	Age gestationnel:Durée:Temps ponctuel:^Foetus:Quantitatif:US.estimé selon IOD.Trout 1994
it-IT	Italian (Italy)	Età gestazionale:Tempo:Pt:^feto:Qn:Ecografia.stimata da IOD.Trout 1994 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 diâmetro interorbital interno.Trout.94 Synonyms: ; GA; Point in time; Random; Fet; Fetal; Quantitative; QNT; Quant; Quan; from IOD.Trout94; 94; Inter orbital diameter; Inter Ocular Distance; from IOD.Trout94; 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+依据眼眶内距的估计法.Trout.94 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双目距离双目间距双眼距离双眼间距双瞳距双瞳间距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) 目间距眼间距瞳孔距离瞳孔距离（Inter Ocular Distance，IOD）瞳孔间距瞳距瞳间距胎;超系统 - 胎儿胎龄;Gestational Age;GA 胎龄估计法;孕龄估计法超声.依据眼眶内距的胎龄估计法.Trout.94;超声.依据IOD的胎龄估计法.Trout 1994;超声.依据IOD的胎龄估计法.Trout.94;超声.依据IOD的胎龄估计法.Trout94;超声.依据内眶距的胎龄估计法.Trout 1994;超声.依据内眶距的胎龄估计法.Trout.94;超声.依据内眶距的胎龄估计法.Trout94;超声.依据眶内距的胎龄估计法.Trout 1994;超声.依据眶内距的胎龄估计法.Trout.94;超声.依据眶内距的胎龄估计法.Trout94;超声.依据眶间距的胎龄超声.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

Example Units

Unit	Source
d	Example UCUM Units

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

CodeSystem lookup: https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33123-1

LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.