TYK115
Which of the following is best for controlled ventilation?
a) Mapleson A
b) Mapleson B
c) Mapleson C
d) Mapleson D
e) Mapleson E
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Which of the following is best for controlled ventilation?
a) Mapleson A
b) Mapleson B
c) Mapleson C
d) Mapleson D
e) Mapleson E
Answer d.
The Mapleson D circuit is most efficient for controlled ventilation due to minimization of efferent gas rebreathing. The Mapleson A circuit is most efficient for spontaneous ventilation. In the United States, the Mapleson D (or a variant of it, called the Bain modification) is the most commonly used of the open anesthesia breathing circuits.