Minimizing Anesthetic Hazards Flashcards
What percentage of methoxyflurane is metabolized by the liver
50-80%
What is the best way to minimize exposure to anesthetic waste gases
Scavenging system
Why do you need an explosion proof fan
bc the law says so
What does oxygen do to combustion
Feeds or supports combustion
What is a possible problem of an active pump or fan scavenging in the circuit (2)
- Suffocate patient
- Possibly rid all drug and oxygen before reaching patient
What does a scavenging system do
Collect waste gas and eliminate it away from the building
Three types of scavenging systems
- Active
- Passive
- Activated charcoal (not for nitrous oxide)
What will happen if the flow rate is too high for an activated charcoal scavenging system
It won’t adsorb
If there is too much negative pressure in the circuit from an active scavenger causing the reservoir bag to collapse, what will temporarily help the patient
Negative relief valve
At what rate will activated charcoal have de creased efficiency
Greater than 2L/min
