The most appropriate circuit for ventilating a spontaneously breathing infant during anaesthesia is? jackson Rees modification of Ayre's T piece

The most appropriate circuit for
ventilating a spontaneously breathing
infant during anaesthesia is?
a) jackson Rees modification of Ayre’s T piece
b) Mapleson A or Magill’s circuit
c) Mapleson C or Waters to and fro canister
d) Bains circuit
Correct Answer - A
Ans. is ‘a’ i.e., Jackson Rees modification