Breathing Circuits

Question 1

What is the BEST Mapleson circuit for a spontaneously ventilating pt?

Answer 1

A

(A, D, B “All Dogs Bite”)

Question 2

Which is the BEST Mapleson circuit for controlled ventilation?

Answer 2

D
(D ,B, A “Don’t Be Arrogant”)

Question 3

Mapleson __ is the only circuit where the fresh gas inlet is near the bag

Answer 3

A

Question 4

Mapleson __ is the only circuit with no corrugated tubing

Answer 4

C

Question 5

Mapleson __ is the only circuit with the APL away from the pt

Answer 5

D

Question 6

Mapleson __ is the only circuit without a reservoir bag

Answer 6

E

Question 7

Mapleson __ doesn’t;t have an APL valve anywhere

Answer 7

E

Question 8

Mapleson __ can have either an APL valve or a small hole at the tail of the bag that is manipulated to control pressure like APL

Answer 8

F

Question 9

What is the best method of determining the amount of FGF required to prevent rebreathing in a Mapleson circuit?

Answer 9

EtCO2

Question 10

The Bain system is a modified Mapleson __

Answer 10

D

Question 11

To prevent rebreathingin the Bain system, FGF should be?

Answer 11

2.5x minute ventilation

Question 12

What test should be performed as part of the pre-anesthetic checkout when using the Bain circuit?

Answer 12

Pethick test

Question 13

What are the benefits of the Mapleson breathing circuits?

Answer 13

simplicity of design
low airway resistance

Question 14

Answer 14

Mapelson A

Question 15

Answer 15

Mapelson D

Question 16

Answer 16

Mapelson C

Question 17

Answer 17

Mapelson B

Question 18

Answer 18

Mapelson E; Ayre’s T piece

Question 19

Answer 19

Mapelson F; Jackson-Rees