Pregnancy

Definition

Pregnancy is the period during which a fertilized egg develops into a fetus inside the uterus. It typically lasts around 40 weeks from the last menstrual period to childbirth.

5 Must Know Facts For Your Next Test

1. Certain medications are contraindicated during pregnancy due to potential teratogenic effects.
2. Progesterone and estrogen levels significantly rise to maintain pregnancy and support fetal development.
3. Homeostasis adjustments, such as increased blood volume and cardiac output, occur to meet the demands of pregnancy.
4. Statins are generally avoided in pregnant women because of potential adverse effects on fetal development.
5. Nurses must understand drug safety categories (A, B, C, D, X) for prescribing or administering medications to pregnant patients.

Review Questions

• Why are statins generally contraindicated during pregnancy?
• How do progesterone and estrogen levels change during pregnancy?
• What homeostatic changes occur in a pregnant woman's body?

Related terms

Teratogenicity: The capability of a substance to cause birth defects.

Fetal Development: The process by which a human embryo or fetus gestates during pregnancy.

Homeostasis: The maintenance of stable internal conditions in an organism.