Page 1 of 28
ANESTHESIA MIDTERM QUESTIONS EXAM 2026
QUESTIONS NEWEST 2026 EXAM QUESTIONS LATEST
VERSION SOLVED QUESTIONS & ANSWERS VERIFIED 100
%
there are two parts an anesthesia delivery circuit
what are the parts of the anesthesia machine in order?
tank pressure gauge with carrier gas
pressure reducing valve
flow meter
oxygen flush valve
vaporizer
there are two parts an anesthesia delivery circuit
what are the parts of the delivery circuit in order?
inhalation valve
inhalation hose
y piece connecting to endotracheal tube
exhalation hose
exhalation valve
reservoir bag, scavenge, pop off value
CO2 absorber
the pressures in gas cylinders are high, O2 being at 2000 PSI
what parts of an anesthesia machine take this down to 50-60 PSI?
pressure reducing valve
even after passing through the pressure reducing valve, 50-60 PSI can still
cause lung damage so it is decreased further by the flowmeter or flush value
which is preferred and why?
, Page 2 of 28
flowmeter - dial amount/minute
why is the flush valve often not used?
no control of O2 delivery
bypasses anesthetic
what does a rebreathing system rely on to rid of CO2?
CO2 absorbent conister
what does a non-rebreathing system rely on to rid of CO2?
high fresh gas flow
how does one deliver a manual breath to a anesthetized patient?
close pop off valve and squeeze bag
what is the function of the pop-off valve?
releases pressure build up after giving more gas than animal consumes
creates positive pressure when squeezing bag
what is the volume of 1 TV?
10ml/kg
major bag alert should hold ___
6 TV
after calculating how big the bag needs to be, select which one if not exact
match?
next size above
in a non-rebreathing circuit, fresh gas flow is set high to flush exhaled gas
where?
out pop-off valve to scavenge system
non-rebreather circuits indicated for pateints less than 2.5kg why?
low resistance
small volume system
what are the cons of a non-rebreathing system?
hypothermia
dryer gas
expensive to deliver more O2 and inhalant
more waste
non-rebreathing circuit
O2 flow?
, Page 3 of 28
weight limits?
percent vaporizer accuracy?
180-300 ml/kg/min, minimum 500 ml/min
< 2.5
percent on vaporizer reflects what is delivered
rebreathing circuit
O2 flow?
weight limits?
percent vaporizer accuracy?
20-30 ml/kg/min
> 2.5 kg
time required for changes to impact circuit concentration
a change in vaporizer will result in a faster change in what kind of circuit?
non-rebreathing
scavenge tubing
the blue tube is generally what?
scavenge systems can be passive in which the flow is generated by the
patient's expiration
what are two examples of this?
activated charcoal filter/f-air canister
pipe extending out of building
an active scavenge works by generating negative pressure to pull waste in so
that it can be disposed into charcoal or the atmosphere
what is an essential part of this set up?
buffer to prevent negative pressure build up
when to discard and f-asir canister?
gained 50g from initial weight
how does sodasorb/CO2 absorbant remove CO2?
chemical reaction generating heat
when to discard and sodasorb canister?
color change
an pediatric Y piece can be used in patients with a bag of what size?
<1L
an pediatric Y piece can be used in patients of what size?
ANESTHESIA MIDTERM QUESTIONS EXAM 2026
QUESTIONS NEWEST 2026 EXAM QUESTIONS LATEST
VERSION SOLVED QUESTIONS & ANSWERS VERIFIED 100
%
there are two parts an anesthesia delivery circuit
what are the parts of the anesthesia machine in order?
tank pressure gauge with carrier gas
pressure reducing valve
flow meter
oxygen flush valve
vaporizer
there are two parts an anesthesia delivery circuit
what are the parts of the delivery circuit in order?
inhalation valve
inhalation hose
y piece connecting to endotracheal tube
exhalation hose
exhalation valve
reservoir bag, scavenge, pop off value
CO2 absorber
the pressures in gas cylinders are high, O2 being at 2000 PSI
what parts of an anesthesia machine take this down to 50-60 PSI?
pressure reducing valve
even after passing through the pressure reducing valve, 50-60 PSI can still
cause lung damage so it is decreased further by the flowmeter or flush value
which is preferred and why?
, Page 2 of 28
flowmeter - dial amount/minute
why is the flush valve often not used?
no control of O2 delivery
bypasses anesthetic
what does a rebreathing system rely on to rid of CO2?
CO2 absorbent conister
what does a non-rebreathing system rely on to rid of CO2?
high fresh gas flow
how does one deliver a manual breath to a anesthetized patient?
close pop off valve and squeeze bag
what is the function of the pop-off valve?
releases pressure build up after giving more gas than animal consumes
creates positive pressure when squeezing bag
what is the volume of 1 TV?
10ml/kg
major bag alert should hold ___
6 TV
after calculating how big the bag needs to be, select which one if not exact
match?
next size above
in a non-rebreathing circuit, fresh gas flow is set high to flush exhaled gas
where?
out pop-off valve to scavenge system
non-rebreather circuits indicated for pateints less than 2.5kg why?
low resistance
small volume system
what are the cons of a non-rebreathing system?
hypothermia
dryer gas
expensive to deliver more O2 and inhalant
more waste
non-rebreathing circuit
O2 flow?
, Page 3 of 28
weight limits?
percent vaporizer accuracy?
180-300 ml/kg/min, minimum 500 ml/min
< 2.5
percent on vaporizer reflects what is delivered
rebreathing circuit
O2 flow?
weight limits?
percent vaporizer accuracy?
20-30 ml/kg/min
> 2.5 kg
time required for changes to impact circuit concentration
a change in vaporizer will result in a faster change in what kind of circuit?
non-rebreathing
scavenge tubing
the blue tube is generally what?
scavenge systems can be passive in which the flow is generated by the
patient's expiration
what are two examples of this?
activated charcoal filter/f-air canister
pipe extending out of building
an active scavenge works by generating negative pressure to pull waste in so
that it can be disposed into charcoal or the atmosphere
what is an essential part of this set up?
buffer to prevent negative pressure build up
when to discard and f-asir canister?
gained 50g from initial weight
how does sodasorb/CO2 absorbant remove CO2?
chemical reaction generating heat
when to discard and sodasorb canister?
color change
an pediatric Y piece can be used in patients with a bag of what size?
<1L
an pediatric Y piece can be used in patients of what size?
