Preliminary Survey Report, Control Technology for Engineering Controls in Hospitals at Providence Hospital, Cincinnati, Ohio.
NIOSH 1983 Sep:20 pages
Engineering controls of low concentrations of hazardous chemical substances in hospitals were examined at the Providence Hospital (SIC-8062) in Cincinnati, Ohio on September 15, 1982. Ethylene- oxide (75218) (EtO), anesthetic gases, and antineoplastic drugs were potential hazards. Heat sensitive medical supplies and equipment were sterilized using EtO. The primary engineering control in the sterilization area was general dilution ventilation. Nine operating rooms had anesthesia machines which caused potential exposure to nitrous-oxide (10024972). Engineering controls in the operating rooms included general dilution ventilation and local exhaust or scavenging ventilation of the waste anesthetic gases. Nitrous-oxide concentrations in three operating rooms ranged from 0 to 1000 parts per million. The high concentrations appeared to result from leaks in the pressure connections at the rear of the anesthesia machines. The authors conclude that in the gas sterilization area, work practices and procedures appear adequate for minimizing inhalation or skin contact with EtO. In the operating rooms, anesthetic gas scavenging equipment is effectively employed, but periodic leaks from the equipment present a hazard. The authors suggest that anesthesia equipment be checked and maintained on a regular basis.
NIOSH-Author; NIOSH-Survey; Ventilation; Field-Study; Hospital-equipment; Employee-exposure; Laboratory-workers; CT-143-11a; Region-5; Worker-health; Equipment-design;
Field Studies; Control Technology
NTIS Accession No.
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, 20 pages, 11 references