NBCRNA Obstetric Anesthesia

Question 1

What is the preferred anesthetic technique for cesarean delivery in most elective cases?

Accepted Answer

Spinal anesthesia

Answer

General anesthesia with rapid sequence induction

Answer

Epidural anesthesia

Answer

Combined spinal-epidural anesthesia

Question 2

At approximately what gestational age is an obstetric patient considered to have a full stomach and at increased aspiration risk during anesthesia?

Accepted Answer

14 weeks

Answer

8 weeks

Answer

18 weeks

Answer

24 weeks

Question 3

Which vasopressor is currently recommended as the first-line treatment for spinal hypotension during cesarean delivery?

Accepted Answer

Phenylephrine

Answer

Ephedrine

Answer

Epinephrine

Answer

Dopamine

Question 4

What dermatome level of sensory blockade is required for adequate spinal anesthesia during cesarean delivery?

Accepted Answer

T4

Answer

T6

Answer

T2

Answer

T10

Question 5

Which local anesthetic is most commonly used for spinal anesthesia in obstetric patients undergoing cesarean delivery?

Accepted Answer

Bupivacaine 0.75% hyperbaric

Answer

Lidocaine 5%

Answer

Ropivacaine 0.5%

Answer

Chloroprocaine 3%

Question 6

What physiological change in pregnancy most significantly decreases the MAC requirement for volatile anesthetic agents?

Accepted Answer

Elevated progesterone levels

Answer

Increased cardiac output

Answer

Respiratory alkalosis

Answer

Increased blood volume

Question 7

What is the most common cause of maternal mortality directly related to obstetric anesthesia in developed countries?

Accepted Answer

Failed or difficult airway management

Answer

High spinal block

Answer

Local anesthetic systemic toxicity

Answer

Aspiration pneumonitis