ARCHETYPE Gestation (openEHR-EHR-OBSERVATION.gestation.v1)

ARCHETYPE ID	openEHR-EHR-OBSERVATION.gestation.v1
Concept	Gestation
Description	The estimate or known period or duration of the pregnancy or gestational age of the fetus or new born.
Use	To record the estimated or known gestational age of a pregnancy or new born.
Misuse	Not to record the historical gestational age of the fetus 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	© National E-Health Transition Authority
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	{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., MD5-CAM-1.0.1=479FF65B6A0D2F259C849C06E21FCA89}
Keywords	gestation, gestational age, conceptional age, maturity
Lifecycle	Initial
Language used	en
Citeable Identifier	1051.32.397
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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 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]], other_participations=[], items=[], details=[], provider=[], source=[], ism_transition=[], data=[ResourceSimplifiedHierarchyItem [path=/data[at0001]/events[at0002]/data[at0003]/items[at0004], code=at0004, itemType=ELEMENT, level=4, text=Gestational age, description=Estimate of time since conception + 2 weeks., 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[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[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]], credentials=[]}, topLevelItems={protocol=ResourceSimplifiedHierarchyItem [path=ROOT_/protocol[at0017], code=at0017, itemType=ITEM_TREE, level=0, text=null, description=null, comment=null, uncommonOntologyItems=null, occurencesFormal=1..1, occurencesText=Mandatory, cardinalityFormal=0..1, cardinalityText=optional, subCardinalityFormal=0.., subCardinalityText=Minimum of 0 items (Cardinality: 0.., unordered), dataType=ITEM_TREE, bindings=null, values=null, extendedValues=null], data=ResourceSimplifiedHierarchyItem [path=ROOT_/data[at0001]/events[at0002]/data[at0003], code=at0003, itemType=ITEM_TREE, level=2, text=null, description=null, comment=null, uncommonOntologyItems=null, occurencesFormal=1..1, occurencesText=Mandatory, cardinalityFormal=0..1, cardinalityText=optional, subCardinalityFormal=0.., subCardinalityText=Minimum of 0 items (Cardinality: 0.., unordered), dataType=ITEM_TREE, bindings=null, values=null, extendedValues=null]}, addHierarchyItemsTo=protocol, currentHierarchyItemsForAdding=[ResourceSimplifiedHierarchyItem [path=/protocol[at0017]/items[at0006], code=at0006, itemType=ELEMENT, level=2, text=Calculation based on, description=The base for the 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 - 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