Breathing Systems Flashcards
Which gases can pass through the fresh gas inlet?
All of the gases.
The regulator or reduction valve reduces the psi to what value?
50 psi
Delivering oxygen and also possibly anesthetic gases as well as eliminating carbon dioxide is done by what system?
Patient Breathing System (PBS)
What are the 2 main types of patient breathing systems?
- Rebreathing
- Non-rebreathing
What should be done to a patient breathing system (PBS) prior to use?
Leak check
Which patient breathing system has a one-way circular pattern?
Rebreathing (circle) system
With which patient breathing system does the patient inhale the same anesthetic as they are exhaling?
Rebreathing (circle) system
What is the unit of measurement used in the flowmeter?
L/min
Which type of breathing system needs a form of CO2 absorption?
Rebreathing (circle) system
Why are rebreathing (circle) systems not good for smaller patients?
There are more components so there is an increased resistance for smaller patients.
A build up of CO2 can lead to what?
Acidemia
Rebreathing (circle) systems should be used for animals above what weight?
3 kg
A pediatric rebreathing hose should be used for patients under what weight?
15 lbs
What type of rebreathing hose is used for patients 15-300 lbs?
Standard adult circle hose
What are 2 types of hoses used with a rebreathing (circle) system?
- Y
- Universal F
Do circle system valves increase or decrease resistance to breathing?
Increase resistance to breathing
Circle system valve incompetence can lead to what?
Rebreathing
What can increased rebreathing lead to?
CO2 values going up causing an acidosis.
What does APL stand for?
adjustable pressure limiting
What is another name for a “pop-off” valve?
Adjustable Pressure Limiting Valve
What limits pressure build-up within the circuit?
APL/pop-off valve
Does an APL/pop-off valve need to be open or closed when administering a breath?
Closed
APL/pop-off valves should always be open except in what circumstances?
Delivering manual, controlled or assisted ventilation
What would happen if the APL/pop-off valve were closed when administering a breath?
Build up of pressure within the circuit could lead to barotrauma.