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

Naloxone 0.4 mg IV

Answer

Flumazenil 0.2 mg IV

Answer

Protamine sulfate 1 mg/100 units

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

Oxytocin

Answer

Misoprostol

Answer

Mifepristone

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

Epidural migration into the intrathecal space

Answer

Hypoglycemic episode

Answer

Hyperventilation syndrome

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 sulfate

Answer

Ferrous gluconate

Answer

Iron polysaccharide complex

Question 5

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

Accepted Answer

Hypertension

Answer

Type 2 diabetes mellitus

Answer

Hypothyroidism

Answer

Mild persistent asthma

Question 6

Which antibiotic is the ACOG-recommended prophylaxis for cesarean birth and should be administered 60 minutes before skin incision?

Accepted Answer

Cefazolin

Answer

Ampicillin-sulbactam

Answer

Gentamicin

Answer

Metronidazole

Question 7

Terbutaline is used as a tocolytic agent. What is its primary mechanism of action in the uterus?

Accepted Answer

Beta-2 adrenergic receptor agonist

Answer

Oxytocin receptor antagonist

Answer

Calcium channel blocker

Answer

Prostaglandin synthesis inhibitor