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Pregnancy—estimated duration of pregnancy at the first antenatal care visit

Metadata item type:Help on this termData Element Concept
METeOR identifier:Help on this term695399
Registration status:Help on this termHealth, Standard 12/12/2018
Indigenous, Endorsed 02/04/2019
Definition:Help on this term

The estimated duration of a pregnancy on the day of the first antenatal care visit.

Object Class attributes

Identifying and definitional attributes

Object class:Pregnancy
Definition:Help on this termThe period during which a woman carries a developing fetus, normally in the uterus. Pregnancy lasts for approximately 266 days, from conception until the baby is born, or 280 days from the first day of the last menstrual period. During pregnancy menstruation is absent, there may be a great increase in appetite, and the breasts increase in size; the woman may also experience morning sickness. These and other changes brought about by a hormone (progesterone) produced at first by the ovary and later by the placenta. Definite evidence of pregnancy is provided by various pregnancy tests, by the detection of the heartbeat of the fetus, and by ultrasound.
Specialisation of:Help on this termLife event

Source and reference attributes

Submitting organisation:Help on this termAustralia Institute of Health and Welfare
Origin:Help on this termUniversity of Oxford 2002. Concise Colour Medical Dictionary 3rd ed. UK: Oxford University Press

Property attributes

Identifying and definitional attributes

Property:Estimated duration of pregnancy at the first antenatal care visit
Definition:Help on this term

The estimated period of human development inside the uterus measured from the first day of the last menstrual period, at the first antenatal care visit.

Property group:Help on this termPhysical characteristics

Source and reference attributes

Submitting organisation:Help on this term

Australian Institute of Health and Welfare

Data element concept attributes

Relational attributes

Related metadata references:Help on this term

Supersedes Pregnancy—estimated duration Health, Superseded 12/12/2018, Tasmanian Health, Endorsed 20/12/2016, WA Health, Endorsed 04/03/2014, Indigenous, Archived 02/04/2019, ACT Health, Final 14/08/2018

See also Product of conception—gestational age Health, Standard 12/12/2018

Data Elements implementing this Data Element Concept:Help on this term

Pregnancy—estimated duration of pregnancy at the first antenatal care visit, total completed weeks N[N] Health, Standard 12/12/2018
Indigenous, Endorsed 02/04/2019

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