Delivery: Oxytocics and Tocolytics

Question 1

What controls the contraction of myometrium?

Answer 1

Calcium

Question 2

What hyper polarizes the myometrium to prevent contractions?

Answer 2

Progesterone

prevents arachadonic acid cascade

Question 3

What increases to bring myometrium closer to depolarization threshold at partuition?

Answer 3

Estrogen

increases gap unions and oxytocin receptors

Question 4

What is the action of oxytocin?

Answer 4

Induces labor
Milk let down
Uterine contraction

Question 5

Misoprostol MOA?

Answer 5

Prostaglandin:

cervical ripening

Question 6

What is used for anticonvulsant?

Answer 6

Magnesium sulfate
IV
IM
Crosses placenta and breast milk

Question 7

What CCB is used for slowing delivery?

Answer 7

Nifedipine

Question 8

What Cox inhibitor is used for slowing delivery?

Answer 8

Indomethacin
blocks PG production
closes patent ductus arteriosis