Certified Midwife Exam Prep Pharmacology & Medications in Midwifery 2

Question 1

What is the specific antidote administered when a patient displays signs of magnesium sulfate toxicity?

Accepted Answer

Calcium gluconate 1 g IV

Answer

Calcium gluconate 1 g IV given over 3 minutes directly antagonizes magnesium's effects and is the established antidote for magnesium toxicity.

Question 2

Which cervical ripening agent is classified as a prostaglandin E2 (PGE2) analog and is available as a controlled-release vaginal insert?

Accepted Answer

Dinoprostone

Answer

Dinoprostone (Cervidil) is a prostaglandin E2 analog approved for cervical ripening and is available as a controlled-release vaginal insert that can be removed if needed.

Question 3

A patient with an epidural in place develops circumoral tingling and a metallic taste. What is the most likely cause?

Accepted Answer

Systemic local anesthetic toxicity (LAST)

Answer

Circumoral numbness and metallic taste are classic early CNS signs of local anesthetic systemic toxicity (LAST), indicating intravascular absorption of the epidural medication.

Question 4

Which oral iron formulation contains the highest percentage of elemental iron and is often preferred for treating iron-deficiency anemia in pregnancy?

Accepted Answer

Ferrous fumarate

Answer

Ferrous fumarate contains approximately 33% elemental iron, the highest among common oral ferrous salts, making it an efficient option for correcting iron deficiency in pregnancy.

Question 5

A postpartum patient with uterine atony is prescribed methylergonovine (Methergine). Which pre-existing condition is an absolute contraindication?

Accepted Answer

Hypertension

Answer

Methylergonovine causes significant vasoconstriction and is absolutely contraindicated in patients with hypertension because it can precipitate a life-threatening hypertensive crisis.

Certified Midwife Exam Prep Practice Test

Certified Midwife Exam Prep Practice Test

Certified Midwife Exam Prep Pharmacology & Medications in Midwifery 2