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Pregnancy—first day of the last menstrual period

Metadata item type:Help on this termData Element Concept
METeOR identifier:Help on this term269509
Registration status:Help on this termHealth, Standard 01/03/2005
Definition:Help on this termDate of the first day of the mother's last menstrual period (LMP).
Context:Help on this term

Perinatal statistics

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:First day of the last menstrual period
Definition:Help on this termDate of the first day of the last menstrual period (LMP).
Property group:Help on this termPhysical characteristics

Source and reference attributes

Submitting organisation:Help on this termAustralian Institute of Health and Welfare

Data element concept attributes

Relational attributes

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

Pregnancy—first day of the last menstrual period, date DDMMYYYY Health, Standard 01/03/2005

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