ANESTHESIA MACHINES EXAM 1 QUESTIONS
What are the components of an anesthesia machine? Where is there high pressure,
medium pressure, and low pressure? What parts are included in each? - Answer -
What are the sources of oxygen? What are some options? - Answer -E or H tanks - the
cylinder on ground
Liquid oxygen dewars - can supply entire building
Good idea to have E tank in case liquid oxygen fails
H tanks are a little bigger than E cylinder
Oxygen generator
What are oxygen tanks? How is it labeled? What system is it? What is volume
proportional to? What volume can E vs. H tanks use? How much pressure in the tanks?
- Answer -Correction = 2,200 psi
H tank is more practical for most hospitals
Which are the E vs. H tanks? What seals the system? How do we open them? How
should they be stored? Where should they NOT be near? - Answer -E = smaller, H =
bigger
Do not want to leave standing because if they fall they can blow up
Where does oxygen go next? What happens to the pressure? What units are used?
What is it specific to? How does it work? How should we handle the equipment? -
Answer -• Regulator on tank reduces pressure - from high pressure to intermediate
pressures that flow meter can handle (37-50 psi)
• Flow meter is L/min or occasionall ml/min
• Specific to the gas (oxygen, nitrous oxide, medical air)
• Gas entering in bottom pushes the float/ball upwards
• Ball read in middle, floats are read at top
• Be gentle with your flowmeters!
- Slowly turn and be sure in off position when connecting to gas/turning on tanks
- Don't overtighten
- Turn slow and gentle
What is the oxygen flush valve? What does it deliver? What is the primary use? What is
the secondary use? When should it NOT be used? - Answer -
How do vaporizers work regarding inhalant delivery? What is compensated? What
drugs are used? How do we ensure safety? - Answer -Desflurane is also being used
but it is terrible for the environment
Isoflurane has to be in iso vaporizer, sevo in sevo. Should NOT be mixed or you make a
mixed anesthetic
Sevo = yellow orange label, iso = purple
If mixup happens, drain it, dry it, send out for recalibration
What are the components of an anesthesia machine? Where is there high pressure,
medium pressure, and low pressure? What parts are included in each? - Answer -
What are the sources of oxygen? What are some options? - Answer -E or H tanks - the
cylinder on ground
Liquid oxygen dewars - can supply entire building
Good idea to have E tank in case liquid oxygen fails
H tanks are a little bigger than E cylinder
Oxygen generator
What are oxygen tanks? How is it labeled? What system is it? What is volume
proportional to? What volume can E vs. H tanks use? How much pressure in the tanks?
- Answer -Correction = 2,200 psi
H tank is more practical for most hospitals
Which are the E vs. H tanks? What seals the system? How do we open them? How
should they be stored? Where should they NOT be near? - Answer -E = smaller, H =
bigger
Do not want to leave standing because if they fall they can blow up
Where does oxygen go next? What happens to the pressure? What units are used?
What is it specific to? How does it work? How should we handle the equipment? -
Answer -• Regulator on tank reduces pressure - from high pressure to intermediate
pressures that flow meter can handle (37-50 psi)
• Flow meter is L/min or occasionall ml/min
• Specific to the gas (oxygen, nitrous oxide, medical air)
• Gas entering in bottom pushes the float/ball upwards
• Ball read in middle, floats are read at top
• Be gentle with your flowmeters!
- Slowly turn and be sure in off position when connecting to gas/turning on tanks
- Don't overtighten
- Turn slow and gentle
What is the oxygen flush valve? What does it deliver? What is the primary use? What is
the secondary use? When should it NOT be used? - Answer -
How do vaporizers work regarding inhalant delivery? What is compensated? What
drugs are used? How do we ensure safety? - Answer -Desflurane is also being used
but it is terrible for the environment
Isoflurane has to be in iso vaporizer, sevo in sevo. Should NOT be mixed or you make a
mixed anesthetic
Sevo = yellow orange label, iso = purple
If mixup happens, drain it, dry it, send out for recalibration
