ARCHETYPE Gestational age (openEHR-EHR-OBSERVATION.gestational_age.v0)

Name: Gestational age
License: http://creativecommons.org/licenses/by-sa/4.0/

ARCHETYPE ID	openEHR-EHR-OBSERVATION.gestational_age.v0
Concept	Gestational age
Description	The estimate or known period or duration of the pregnancy or gestational age of the foetus or new born.
Use	To record the estimated or known gestational age of a pregnancy or new born.
Misuse	Not to record the gestational of the foetus at birth. This is recorded in the pregnancy summary.
Purpose	To record the estimated or known gestation age of a current pregnancy or new born at a point in time.
References	Mongelli M. Evaluation of Gestation. Medscape Reference. See http://emedicine.medscape.com/article/259269-overview#showall (accessed Jan 2012) Peek MJ, Devonald KJ, Beilby R, Ellwood D. The value of routine early pregnancy ultrasound in the antenatal booking clinic. Aust N Z J Obstet Gynaecol. May 1994;34(2):140-3. Geirsson RT, Busby-Earle RM. Certain dates may not provide a reliable estimate of gestational age. Br J Obstet Gynaecol. Jan 1991;98(1):108-9. Guerrero R, Florez PE. The duration of pregnancy. Lancet. Aug 2 1969;2(7614):268-9.
Copyright	© openEHR Foundation
Authors	Author name: Sam Heard Organisation: NT mEHR Project Email: sam.heard@oceaninformatics.com Date originally authored: 2012-01-04
Other Details Language	Author name: Sam Heard Organisation: NT mEHR Project Email: sam.heard@oceaninformatics.com Date originally authored: 2012-01-04
OtherDetails Language Independent	{licence=This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/., custodian_organisation=openEHR Foundation, references=Mongelli M. Evaluation of Gestation. Medscape Reference. See http://emedicine.medscape.com/article/259269-overview#showall (accessed Jan 2012) Peek MJ, Devonald KJ, Beilby R, Ellwood D. The value of routine early pregnancy ultrasound in the antenatal booking clinic. Aust N Z J Obstet Gynaecol. May 1994;34(2):140-3. Geirsson RT, Busby-Earle RM. Certain dates may not provide a reliable estimate of gestational age. Br J Obstet Gynaecol. Jan 1991;98(1):108-9. Guerrero R, Florez PE. The duration of pregnancy. Lancet. Aug 2 1969;2(7614):268-9., original_namespace=org.openehr, original_publisher=openEHR Foundation, custodian_namespace=org.openehr, MD5-CAM-1.0.1=EA7904B19BA6D8B6F0ABFB604B7D714A, build_uid=99b4c4f3-0c25-421f-84aa-078e16bfe34e, revision=0.0.1-alpha}
Keywords	gestation, gestational age, conceptional age, maturity
Lifecycle	in_development
UID	0f1e1aaa-df3d-4d68-9485-2f1702f7c347
Language used	en
Citeable Identifier	1013.1.4763
Revision Number	0.0.1-alpha
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weeks gestation.] at0009::Ultrasound - third trimester [An ultrasound done greater than 28 weeks gestation.] at0010::Date of last menstrual period [The date of the first day of the last menstruation.] at0011::Date of conception [The date of conception is known.] at0012::Uterine examination - first trimester [The size of the uterus before 14 weeks gestation.] at0013::Uterine examination - second trimester [The fundal height measured between 14 and 28 weeks gestation.] at0014::Uterine examination - third trimester [The fundal height after 28 weeks gestation.] at0015::Date of first positive pregnancy test [Date of first positive pregnancy test, ideally involving serial pregnancy tests with a known sensitivity.] at0016::Calculated from expected date of birth (EDB) [Calculated back from the expected date of birth.] , extendedValues=null]], credentials=[], description=[], ism_transition=[], provider=[], content=[], activities=[], relationships=[], contacts=[], details=[], capabilities=[], 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dataType=DV_DURATION, bindings=null, values=Allowed values:* weeks, days 0 weeks..60 weeks , extendedValues=null], ResourceSimplifiedHierarchyItem [path=/data[at0001]/events[at0002]/data[at0003]/items[at0005], code=at0005, itemType=ELEMENT, level=4, text=Conceptional age, description=The time since conception., comment=null, uncommonOntologyItems=null, occurencesFormal=0..1, occurencesText=Optional, cardinalityFormal=null, cardinalityText=null, subCardinalityFormal=null, subCardinalityText=null, dataType=DV_DURATION, bindings=null, values=Allowed values: weeks, days 0 weeks..60 weeks , extendedValues=null], ResourceSimplifiedHierarchyItem [path=/data[at0001]/events[at0002]/data[at0003]/items[at0020], code=at0020, itemType=ELEMENT, level=4, text=Trimester, description=Duration of pregnancy grouped into 12-14 week intervals., comment=null, uncommonOntologyItems=null, occurencesFormal=0..1, occurencesText=Optional, cardinalityFormal=null, cardinalityText=null, subCardinalityFormal=null, subCardinalityText=null, dataType=DV_CODED_TEXT, bindings=null, values= at0021::First trimester [First day of last normal menstrual period until the end of week 12 of a pregnancy.] at0022::Second trimester [Beginning of week 13 to the end of week 28 of a pregnancy.] at0023::Third trimester [Beginning of week 29 until birth.] , extendedValues=null], ResourceSimplifiedHierarchyItem [path=/data[at0001]/events[at0002]/data[at0003]/items[at0019], code=at0019, itemType=ELEMENT, level=4, text=Comment, description=Clinical comment on gestational or conceptional age., comment=null, uncommonOntologyItems=null, occurencesFormal=0..1, occurencesText=Optional, cardinalityFormal=null, cardinalityText=null, subCardinalityFormal=null, subCardinalityText=null, dataType=DV_TEXT, bindings=null, values=, extendedValues=null]]}, topLevelItems={protocol=ResourceSimplifiedHierarchyItem [path=ROOT_/protocol[at0017], code=at0017, itemType=ITEM_TREE, level=0, text=null, description=null, comment=null, 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calculation of the durataion of pregnancy., comment=null, uncommonOntologyItems=null, occurencesFormal=0..1, occurencesText=Optional, cardinalityFormal=null, cardinalityText=null, subCardinalityFormal=null, subCardinalityText=null, dataType=DV_CODED_TEXT, bindings=null, values= at0007::Ultrasound - first trimester [An ultrasound done before 14 weeks gestation.] at0008::Ultrasound - second trimester [An ultrasound done between 14 and 28 weeks gestation.] at0009::Ultrasound - third trimester [An ultrasound done greater than 28 weeks gestation.] at0010::Date of last menstrual period [The date of the first day of the last menstruation.] at0011::Date of conception [The date of conception is known.] at0012::Uterine examination - first trimester [The size of the uterus before 14 weeks gestation.] at0013::Uterine examination - second trimester [The fundal height measured between 14 and 28 weeks gestation.] at0014::Uterine examination - third trimester [The fundal height after 28 weeks 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