Pregnancy Timeline Flashcards
What is last menstrual period (LMP)?
Last menstrual period (LMP) refers to the date of the first day of the most recent menstrual period.
What is gestational age (GA)?
Gestational age (GA) refers to the duration of the pregnancy starting from the date of the last menstrual period.
What is estimated date of delivery (EDD)?
Estimated date of delivery (EDD) refers to the estimated date of delivery (40 weeks gestation).
What is gravida (G)?
Gravida (G) is the total number of pregnancies a woman has had.
What is primigravida?
Primigravida refers to a patient that is pregnant for the first time.
What is multigravida?
Multigravida refers to a patient that is pregnant for at least the second time.
What is para (P)?
Para (P) refers to the number of times the woman has given birth after 24 weeks gestation, regardless of whether the fetus was alive or stillborn.
What is nulliparous (“nullip”)?
Nulliparous (“nullip”) refers to a patient that has never given birth after 24 weeks gestation.
What is primiparous?
Primiparous technically refers to a patient that has given birth after 24 weeks gestation once before.
The term primiparous, or “primip” is a bit confusing. Technically, it refers to a woman that has given birth once before. However, it is often used on the labour ward to refer to a woman that is due to give birth for the first time (and has never given birth before). You may hear patients referred to on the labour ward as a “primip” when they have never given birth before.
What is multiparous (“multip”)?
Multiparous (“multip”) refers to a patient that has given birth after 24 weeks gestation two or more times.
How is GA determined?
The timeline for each pregnancy depends on the start date of the last menstrual period (LMP). This determines the gestational age (GA) and the estimated date of delivery (EDD) of the pregnancy. After the booking scan, the gestational age is more accurately assessed and the estimated date of delivery is updated accordingly.
The gestational age is described in weeks and days. For example:
- 5 + 0 refers to 5 weeks gestational age (since the LMP)
- 13 + 6 refers to 13 weeks and 6 days gestational age
What is the gravidity and para of the following…?
- A pregnant woman with three previous deliveries at term
- A non-pregnant woman with a previous birth of healthy twins
- A non-pregnant woman with a previous miscarriage
- A non-pregnant woman with a previous stillbirth (after 24 weeks gestation)
A pregnant woman with three previous deliveries at term: G4 P3.
A non-pregnant woman with a previous birth of healthy twins: G1 P1.
A non-pregnant woman with a previous miscarriage: G1 P0 + 1.
A non-pregnant woman with a previous stillbirth (after 24 weeks gestation): G1 P1.
Briefly differentiate between the first, second and third trimester
The first trimester is from the start of pregnancy until 12 weeks gestation.
The second trimester is from 13 weeks until 26 weeks gestation.
The third trimester is from 27 weeks gestation until birth.
At what week do fetal movements begin?
It is worth noting that fetal movements start from around 20 weeks gestation and continue until birth.
When does the booking clinic take place?
What is the purpose of this?
When does the dating scan take place?
What is the purpose of this?
When does the first antenatal appoinement occur?
What is the purpose?
When does the first anomoly scan take place?
What is the purpose?
When do the remaining antenatal appointments take place?
What is the purpose?
