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
Which drug is contraindicated in patients susceptible to malignant hyperthermia?
Answer: Succinylcholine
Succinylcholine is a known trigger for malignant hyperthermia and is absolutely contraindicated in susceptible patients.
What is the treatment of choice for malignant hyperthermia?
Answer: Dantrolene sodium IV
Dantrolene sodium prevents calcium release from the sarcoplasmic reticulum, halting the hypermetabolic crisis of malignant hyperthermia.
What spinal level should be achieved for effective first-stage labor analgesia with an epidural?
Answer: T10-L1
A T10-L1 sensory block covers the uterus and cervix, providing effective analgesia during the first stage of labor.
What is the primary risk of using neuraxial opioids for labor analgesia?
Answer: Maternal respiratory depression and pruritus
Neuraxial opioids can cause maternal respiratory depression and pruritus due to opioid receptor activation and potential systemic absorption.
Which obstetric emergency most urgently requires immediate operative delivery?
Answer: Umbilical cord prolapse
Cord prolapse causes fetal compression and hypoxia requiring immediate delivery, often necessitating urgent general anesthesia if neuraxial isn't established.
Which vasopressor is preferred for treating obstetric spinal hypotension based on uteroplacental blood flow effects?
Answer: Phenylephrine
Phenylephrine preserves uteroplacental blood flow better than ephedrine in most obstetric cases and is now preferred for treating spinal hypotension in cesarean delivery.