Pregnancy Terminology

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Gestation

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number of weeks since the first day of the last menstrual period

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Abortion

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birth that occurs before the end of 20 weeks of getation OR the birth of a fetus/newborn who weighs less than 500 grams

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Term

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Previously referred to the normal duration of pregnancy, but is no longer recommended to use. See "Early Term" "Full Term" and "Late Term"

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Antepartum

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time between conception and the onset of true labor; often used to describe the period during which a woman is pregnant, used interchangably with prenatal

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Intrapartum

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Time from the onset of true labor until the birth of the infant AND the placenta

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Postpartum

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time from birth until the woman's body returns to an essentially pre-pregnant conditions (some small changes are permanent)

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Preterm labor/premature labor

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labor that occurs after 20 weeks but before completion of 37 weeks (up through 36 6/7 weeks)

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Postterm labor

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labor that occurs after 42 weeks gestation

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Gravida

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Any pregnancy, regardless of duration, including the current pregnancy

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Nulligravida

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a woman who has never been pregnant

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primigravida

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a woman pregnant for the first time

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multigravida

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a woman pregnant for the second or greater # pregnancy

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Para

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(literally-to give birth) birth after 20 weeks' gestation regardless of the condition of the infant at birth

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nullipara

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a woman who has never delivered a pregnancy of 20 or more weeks' gestation

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primipara

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a woman who has delivered one pregnancy at 20 weeks or greater

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multipara

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a woman who has given birth two or more times at 20 weeks or greater

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stillbirth

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an infant born dead after 20 weeks gestation (no signs of life-pulse, breathing, or movement)

see also
http://medical-dictionary.thefreedictionary.com/live+birth

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GTPAL

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a system of abbreviation to denote the obstetric history
G=gravida (# pregnancies) P=preterm births T=term births A=abortions L=number of living children currently

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Early Term

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37 0/7 through 38 6/7 weeks post Last Menstrual Period

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Full Term

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39 0/7 through 40 6/7 weeks post Last Menstrual Period

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Late Term

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41 0/7 through 41 6/7 weeks post Last Menstrual Period

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Post Term

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42 0/7 weeks post Last Menstrual Period and thereafter until delivery