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Precautionary Practices for Administering Anesthetic Gases: A Survey of Physician Anesthesiologists, Nurse Anesthetists and Anesthesiologist Assistants
  • Published Date:
    Oct 2 2016
  • Source:
    J Occup Environ Hyg. 13(10):782-793.


Public Access Version Available on: October 02, 2017 information icon
Please check back on the date listed above.
Details:
  • Pubmed ID:
    27542098
  • Pubmed Central ID:
    PMC4994980
  • Funding:
    CC999999/Intramural CDC HHS/United States
  • Document Type:
  • Collection(s):
  • Description:
    Scavenging systems and administrative and work practice controls for minimizing occupational exposure to waste anesthetic gases have been recommended for many years. Anesthetic gases and vapors that are released or leak out during medical procedures are considered waste anesthetic gases. To better understand the extent recommended practices are used, the NIOSH Health and Safety Practices Survey of Healthcare Workers was conducted in 2011 among members of professional practice organizations representing anesthesia care providers including physician anesthesiologists, nurse anesthetists, and anesthesiologist assistants. This national survey is the first to examine self-reported use of controls to minimize exposure to waste anesthetic gases among anesthesia care providers. The survey was completed by 1,783 nurse anesthetists, 1,104 physician anesthesiologists, and 100 anesthesiologist assistants who administered inhaled anesthetics in the seven days prior to the survey. Working in hospitals and outpatient surgical centers, respondents most often administered sevoflurane and, to a lesser extent desflurane and isoflurane, in combination with nitrous oxide. Use of scavenging systems was nearly universal, reported by 97% of respondents. However, adherence to other recommended practices was lacking to varying degrees and differed among those administering anesthetics to pediatric (P) or adult (A) patients. Examples of practices which increase exposure risk, expressed as percent of respondents, included: using high (fresh gas) flow anesthesia only (17% P, 6% A), starting anesthetic gas flow before delivery mask or airway mask was applied to patient (35% P; 14% A); not routinely checking anesthesia equipment for leaks (4% P, 5% A), and using a funnel-fill system to fill vaporizers (16%). Respondents also reported that facilities lacked safe handling procedures (19%) and hazard awareness training (18%). Adherence to precautionary work practices was generally highest among nurse anesthetists compared to the other anesthesia care providers. Successful management of waste anesthetic gases should include scavenging systems, hazard awareness training, availability of standard procedures to minimize exposure, regular inspection of anesthesia delivery equipment for leaks, prompt attention to spills and leaks, and medical surveillance.

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