Pediatric & Obstetric Anesthesia Flashcards
6 cards from real MAC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Pediatric & Obstetric Anesthesia flashcards as text
What is the most common cause of cardiac arrest in pediatric patients under general anesthesia?
Answer: Laryngospasm leading to hypoxia
Laryngospasm causing hypoxia is the leading cause of cardiac arrest in pediatric anesthesia, emphasizing the critical importance of airway management.
What formula is used to estimate uncuffed endotracheal tube size (internal diameter) in pediatric patients?
Answer: Age/4 + 4
The formula (Age/4 + 4) estimates uncuffed ETT internal diameter in millimeters for pediatric patients.
At what gestational age are nociceptive pathways sufficiently developed for fetal pain response?
Answer: 24 weeks
Nociceptive pathways are sufficiently developed by approximately 24 weeks gestation for a fetal response to pain.
Which induction method is preferred for a pediatric patient with a full stomach requiring emergency surgery?
Answer: Rapid sequence induction with succinylcholine
Rapid sequence induction minimizes time to securing the airway and reduces aspiration risk in pediatric patients with full stomachs.
Which anatomical difference in infant airways compared to adults most affects laryngoscopy?
Answer: The infant larynx is positioned more anteriorly and cephalad
The infant larynx is positioned more anteriorly and cephalad (C3-C4 vs. C4-C5 in adults), requiring adjustments in laryngoscopy technique.
What reduction in MAC occurs in pregnant patients compared to non-pregnant patients?
Answer: 30-40%
Pregnancy reduces MAC by approximately 30-40% due to elevated progesterone levels, which have CNS sedative properties.