Anesthesia Equipment Chapter 2 Flashcards
end of chapter questions
The normal pipeline pressure (in kPa) for oxygen, nitrous oxide, and air in the US is:
345 - 380 kPa
The most frequently reported malfunction in medical gas pipeline systems is:
inadequate pressure
Compressed air is most often supplied by:
compressors
The DISS is used for devices at pressures of ____ or less. (in kPa and psi)
1380 kPa or 200 psi
What are the results of increased pressure in the oxygen pipeline system?
gas blender malfunction
ventilator malfunction
The following provide standards for pipeline systems:
National Fire Protection Association (NFPA)
Compressed Gas Association (CGA)
Functions of the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) in relation to medical gas pipeline systems include:
Ensuring compliance with the various standards that apply to pipeline systems
Central gas supplies may be located:
inside in a special room used only for this purpose
outdoors
in an enclosure
Oxygen may be supplied to the pipeline system by:
G and H cylinders
oxygen concentrators
bulk liquid systems
Vaporization of liquid oxygen in a bulk tank will result in:
loss of oxygen to the atmosphere
loss of oxygen that may be greater than demand
significant loss of oxygen even though there is no use
Heat must be supplied to vaporize liquid oxygen because:
the heat of vaporization will cause the temp to fall
as the temp falls, the pressure in the tank falls
NFPA regulations require a shutoff valve:
outside each operating room
at each riser, adjacent to the connection to the main supply line
A master alarm system panel should be located:
in the office of the person responsible for maintenance of the system
at the switchboard or security office
The DISS:
achieves non-interchangeability by using different screw threads
Preuse testing of a pipeline system should include:
pressure testing
purge testing
testing for cross connections
testing for the purity of the gases
Quick connectors:
provide non-interchangeable connections
allow apparatus to be connected or disconnected by a single action
may require the use of one or both hands
do not require the use of tools
Cross connections of pipelines:
may be caused by devices not in use
are most commonly associated with construction, alterations, or repair
Which components are part of a medical gas distribution system?
Central supply
Pipelines
Terminal Units
Location of area alarms include:
critical life support areas
upstream of the shutoff valve in anesthetizing locations
each anesthetizing location
downstream of the shutoff valve in the critical life support areas
When will an alarm be activated?
When the reserve supply begins to supply the system
When the secondary supply begins to supply the system
