How to Calculate GTPAL and Parity for the NCLEX (Plus Free Cheat Sheet!)

If you are studying OB/Maternity nursing, you already know that keeping all the terminology straight can feel completely overwhelming. Between tracking weeks of gestation and memorizing the difference between nullipara and primigravida, there is a lot to juggle before test day!

To make your studying easier, we’ve transcribed our ultimate maternity terminology and GTPAL cheat sheet below. Save the featured image above to your phone or Pinterest board for quick reference, and read on for a complete breakdown to master GTPAL for the NCLEX.

1. Comprehensive Maternity Terminology

Before diving into gravidity and parity, you need a solid foundation of maternal vocabulary. Here are the core terms you need to know for your nursing exams:

Term	Definition
Amniotic fluid	Liquid that protects the baby in the uterus
Amniotic sac	Sac that surrounds the baby & amniotic fluid
Braxton-Hicks	False contractions; do not cause cervical dilation
Cervix	Canal between the uterus & vagina
Colostrum	First breast milk produced
Conception	Fertilization of egg & sperm
Contraception	Measures used to prevent pregnancy
Dilation	Cervix opening during labor
Effacement	Thinning of the cervix during labor
Engagement	Labor stage when baby’s head enters pelvis
Embryo	Fertilized egg
Endometritis	Inflammation of uterine lining
Endometriosis	Endometrial cells grow outside uterus
Fertility	The ability to become pregnant
Fetal heart tones	Baby’s heartbeat
Fetus	Unborn baby
Fibroids	Non-cancerous growths in uterus
Fundus	Rounded top part of the uterus
Gestation	Time between conception & birth
Involution	Shrinking of uterus to original size
Labor	Stages of active childbirth
Lochia	Vaginal discharge after giving birth
Meconium	Baby’s first bowel movement when first born
Menopause	Time when period stops indefinitely
Oligohydramnios	Lack of amniotic fluids
Os	Opening of cervix
Preterm birth	Baby born before 37 weeks
PROM	Premature rupture of membranes (water breaking < 37 weeks)
Post-term	Pregnancy lasting >42 weeks
Rupture of membranes	Water breaking

2. Gravidity & Parity Explained

Two of the most heavily tested concepts in OB nursing are Gravida and Parity.

Gravidity (Pregnancy)

• Gravida: A woman who is pregnant.
• Gestational Age: Age of baby in the womb.
• Abortion: Spontaneous or intentional termination of pregnancy.
• Miscarriage: Spontaneous loss of pregnancy < 20 weeks.

Parity (Deliveries)

Parity refers to the number of times a woman has given birth past 20 weeks gestation. This includes both living and stillborn births.

Prefix	Meaning
Nullipara	0 births > 20 weeks
Primipara	1 birth > 20 weeks
Multipara	2+ births > 20 weeks
Nulligravida	Never pregnant
Primigravida	First pregnancy
Multigravida	2+ pregnancies

3. The GTPAL Acronym Breakdown

GTPAL is an acronym used to obtain a more detailed breakdown of parity to assess a woman’s full obstetric history.

Letter	Stands For	What it Includes	The Multiples Rule
G	Gravida	Current pregnancy, miscarriages, and abortions	Twins/triplets count as ONE
T	Term	Deliveries at >37 weeks (alive or stillbirth)	Twins/triplets count as ONE
P	Preterm	Deliveries between 20–37 weeks (alive or stillbirth)	Twins/triplets count as ONE
A	Abortion	Pregnancy loss before 20 weeks (abortions & miscarriages)	Twins/triplets count as ONE
L	Living	Current living children	Counted SEPARATELY

4. GTPAL Practice Question (NCLEX Style)

Let’s test your knowledge with a real-world scenario!