,OB exam 1 summary book maternity and pediatric nursing 5th edition 2024 nova southeastern university
, OB exam 1 summary book maternity and pediatric nursing 5th edition 2024 nova southeastern university
OB Exam 1
Chapter 1 - Antepartal Assessment and Care
• Antepartum is the time of pregnancy until the time of birth
• Trimesters of pregnancy
o First trimester: 0-12 weeks
o Second trimester: 13-28 weeks
o Third trimester: 29-40 weeks
• The average pregnancy lasts 280 days from the first day of the last menstrual period
(266 days from time of ovulation), 9 calendar months, 40 weeks
• Nagele’s Rule is to count back 3 months from the first day of the last menstrual
period and add 7 days
o November 20, add 7 days, -3 months = August 27
o December 14, add 7 days, -3 months = September 21
Phases of Pregnancy
• Antepartum: the time between conception and the onset of labor
• Intrapartum: period from the onset of true labor until the birth of the baby and placenta
• Postpartum: time from birth until the women’s body returns to prepregnant state.
Usually about 6 weeks
• True labor: contractions occurring at regular intervals that increase in frequency, duration,
and intensity. True labor contractions bring about progressive cervical dilation and
effacement
• False labor: occurs in the latter weeks of some pregnancies in which irregular
uterine contractions are felt, but the cervix is not affected
GTPAL
, OB exam 1 summary book maternity and pediatric nursing 5th edition 2024 nova southeastern university
• Gravida: the total number of pregnancies, including the current one. Even if the
mother didn’t give birth to the baby, it still counts as a pregnancy.
• Term: the number of infants born at term (38 or more weeks gestation)
• Preterm: the number of infants born after 20 weeks’ gestation and before 38 weeks
• Abortion: the number of pregnancies that ended in either therapeutic or spontaneous
abortion (before 20 weeks). Abortion just means the baby comes out before 20 weeks
no
matter how it comes out or what happens
• Living: the number of children currently living, not counting the baby in the belly
Obstetric History Terms: GTPAL
Pregnancy Terminology