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Aneasthesia - Coggle Diagram

- - - - Source of oxygen
    - - Connects with pins to the O2 tank
    - - Indicates how much oxygen is in the tank
    - - Decreases the pressure of oxygen from the tank
    - - Used to bypass flowmeter and vaporiser
      - Usually used for
    - - Indicates flow of oxygen
    - - Converts liquid anaesthetic to gas
    - - Where gas exits the machine and enters circuit
    - - Smooth lining
      - Fresh gas to the patient
    - - Connects to patient
      - Is dead space
    - - CO2 leaving the patient
    - - Exit point for excess gas
    - - Allows for fluctuations of air pressure
      - Assists with monitoring
      - Allows to give a breath to patient
    - - Removes CO2
    - - Indicates pressure in the circuit
    - - Charcoal canister
        
        Charcoal absorbs anaesthetic vapor and expels oxygen through the bottom
        
        Passive
      - Exit for excess gas
      - Active or passive
  - - - For animals larger then 7kg
      - Advantages
        
        Warms gas in circulation
        
        Can use lower rate of gas
        
        Long tube to give space around the patient
      - Disadvantages
        
        Harder for patient to exhale
        
        Slower response to changes in oxygen
        
        Have to use soda-lime cannister
      - Types
        
        Circle
        
        No right or wrong end unless warming
        
        Easier to breathe then F circuit
        
        F Circuit
        
        Co-axial
        
        Inner tubing is inspiratory
        
        More contained then circle
      - Components
        
        Fresh gas inflow
        
        Breathing hoses
        
        Y connector
        
        Unidirectional flow valves
        
        Canister
    - - Small animals under 7kg
      - Advantages
        
        Easier to breathe out
        
        Immediate change in vapor or oxygen
      - Disadvantages
        
        Higher gas flow
        
        Higher environmental impact
        
        Cold gas
      - Types
        
        Ayre's T-piece
        
        Bain Circuit
        
        Co-axial
  - - - Gives light for intubation
    - - Stops larynx spasms in cats
    - - Joins circuit to the lungs
    - - Ties ET tube in place
    - - Inflate Et tube cuff
    - - Monitoring machine