Reduce Exposure to Waste Anesthetic Gases
Remember: Pollution control is
secondary to patient safety and proper anesthesia
- Before use, check the connection and proper operation of the
anesthesia machine and scavenging system.
- Never identify liquid anesthetics by sniffing them; when in doubt,
drain, clean, dry, and refill the vaporizer. (The odor threshold for
liquid halogenated anesthetics is 50 ppm—25 times the NIOSH
recommended exposure limit.)
- Except to briefly verify N2O flow, use O2 for all pre-use checks.
- Don't administer anesthesia until you're sure the mask forms
a good seal. During intubation, stop N2O flow
until the patient circuit is reconnected.
- Stop the flow of anesthetics before disconnecting the patient
- Before mask removal or extubation, administer 100% O2 for as long as possible to remove
anesthetic gases from the low-pressure system.
- In all postanesthetic care areas, avoid inhalation of the patient's
exhaled anesthetic gases.
- Include anesthesia and scavenging equipment and ventilation systems
in a routine preventive maintenance program.
- Monitor waste anesthetic gas levels periodically.