TYK200
One of the main reasons for increased speed of induction with volatile anesthetics in neonates is:
a) Lower blood-gas solubility coefficient for volatile anesthetics in children.
b) Increased cardiac output leading to quick equilibration of alveolar and blood concentrations.
c) Increased blood supply to the vessel rich group (VRG) in children compared to adults.
d) Increased metabolic rate leading to increased anesthetic utilization.
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Answer
Answer c.
Increased cardiac output alone should decrease the speed of induction for infants; however, preferential distribution of blood to the VRG results in higher venous partial pressures and higher rate of rise of Fi/Fa.
Notes
- This question originally printed in the Pediatric Anesthesiology Review Topics kindle book series, and appears courtesy of Naerthwyn Press, LLC.
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