Obstetric Sonography Overview Vocabulary

Question 1

A protein produced by the fetal yolk sac, gastrointestinal tract, and the fetal liver; may also be produced by some malignant tumors

Answer 1

Alpha-Fetoprotein

Question 2

An estrogenic hormone produced by the placenta

Answer 2

Estriol

Question 3

The number of times that a woman has been pregnant

Answer 3

Gravidity

Question 4

A hormone produced by the trophoblastic cells of the early placenta; may also be used as a tumor marker in nongravid patients and males

Answer 4

Human Chorionic Gonadotropin

Question 5

A peptide hormone secreted by the placenta during pregnancy

Answer 5

Inhibin A

Question 6

The number of pregnancies in which the patient has given birth to a fetus at or beyond 20 weeks gestational age or an infant weighing more than 500g

Answer 6

Parity

Question 7

When the placenta covers or nearly covers the internal os of the cervix

Answer 7

Placenta Previa

Question 8

The premature separation of the placenta from the uterine wall before the birth of the fetus

Answer 8

Placental Abruption

Question 9

A protein that is produced by the placenta

Answer 9

Pregnancy-Associated Plasma Protein A

Question 10

A maternal blood test that includes an analysis of human chorionic gonadotropin, alpha-fetoprotein, estriol, and inhibit A

Answer 10

Quadruple Screen

Question 11

A reduction in blood return to the maternal heart caused by the gravid uterus compressing the maternal inferior vena cava

Answer 11

Supine Hypotensive Syndrome

Question 12

A maternal blood test that typically includes an analysis of human chorionic gonadotropin, alpha-fetoprotein, and estriol

Answer 12

Triple Screen