MAC Pediatric & Obstetric Anesthesia

Question 1

What is the most common cause of cardiac arrest in pediatric patients under general anesthesia?

Accepted Answer

Laryngospasm leading to hypoxia

Answer

Laryngospasm causing hypoxia is the leading cause of cardiac arrest in pediatric anesthesia, emphasizing the critical importance of airway management.

Question 2

What formula is used to estimate uncuffed endotracheal tube size (internal diameter) in pediatric patients?

Accepted Answer

Age/4 + 4

Answer

The formula (Age/4 + 4) estimates uncuffed ETT internal diameter in millimeters for pediatric patients.

Question 3

At what gestational age are nociceptive pathways sufficiently developed for fetal pain response?

Accepted Answer

24 weeks

Answer

Nociceptive pathways are sufficiently developed by approximately 24 weeks gestation for a fetal response to pain.

Question 4

Which induction method is preferred for a pediatric patient with a full stomach requiring emergency surgery?

Accepted Answer

Rapid sequence induction with succinylcholine

Answer

Rapid sequence induction minimizes time to securing the airway and reduces aspiration risk in pediatric patients with full stomachs.

Question 5

Which anatomical difference in infant airways compared to adults most affects laryngoscopy?

Accepted Answer

The infant larynx is positioned more anteriorly and cephalad

Answer

The infant larynx is positioned more anteriorly and cephalad (C3-C4 vs. C4-C5 in adults), requiring adjustments in laryngoscopy technique.

MAC - Maintaining Anesthesia Certification Practice Test

MAC - Maintaining Anesthesia Certification Practice Test

MAC Pediatric & Obstetric Anesthesia