Prepare and monitor anaesthesia in animals

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Prepare and monitor anaesthesia in animals

• MASK CHAMBER INDUCTION

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Masks
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Face Masks (cones)

• Masks are used to provide oxygen in comatose or
  recovering animals, or for the delivery of
  volatile anaesthetics when intubation is not
  performed.

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Mask Induction

• For animals difficult to IV
• Needs to fit well to avoid pollution
• Need high flow rate to flush out CO2

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Mask induction with Circle system

• High flow rates 2-4 litres/min
• Vaporizer fully on
• 25 higher than normal
• Induction time usually 3 to 5 min

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Mask induction with T-Piece

• Usual flow rate
• 200 mL/kg/min
• Vaporiser at 3

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Advantages of mask induction

• Do not damage the airway
• Produce smooth inductions when patients are
  depressed or heavily sedated.

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Disadvantages of Mask induction

• Expensive
• Increased patient stress
• Increased anaesthetic pollution

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Induction Chamber
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Chamber induction

• Useful in cats exotic pets
• Sedation should be present, otherwise inductions
  may be violent
• Pollution is a problem when the chamber is opened.

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Chamber

• For fractious animals
• High pollution risk
• Connect to scavenger
• Open box near exhaust fan?

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The End