Cause of Device-Related Incident
*Not stated

Clinical Specialty or Hospital Department
Anesthesia; Dermatology; Obstetrics and Gynecology; OR / Surgery

Device Factors
*Not stated

Document Type

External Factors
*Not stated

Mechanism of Injury or Death
Exposure to hazardous gas

Support System Failures
*Not stated

Tampering and/or Sabotage
*Not stated

User Errors
*Not stated

Reduce Exposure to Waste Anesthetic Gases


Remember: Pollution control is secondary to patient safety and proper anesthesia administration.

  • 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 circuit.
  • 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.

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