Mechanical Ventilator Initiation

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Mechanical VentilatorInitiation
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Mode of Ventilatory Support

• Classified into one of following categories -
  those that provide full ventilatory support
  (machine is responsible for entire minute
  ventilation) - those that provide partial
  support (pt. is responsible for some or all of
  the minute ventilation)

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Full Ventilatory Support Modes

• CMV - control - assist control
• SIMV
• PCV (PRVC)

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Partial Vent. Support Modes

• Low-rate SIMV
• PSV
• VSV (Volume Support Ventilation) - Servo 300
  (PSV to deliver certain volume)
• APRV (airway press. Release ventilation)
• BiPAP
• CPAP

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Minute Ventilation Setting(Volume and Resp. Rate)

• Adults Resp. Rate Vol.(ml/kg) Normal
  lungs 8 - 12 8 - 10 COPD 8 - 10 8 -
  10 Restrictive 12-20 10 ARDS 12-20 10
• Children 8 -16 years 20-30 8 - 10 0
  - 8 years 25-35 6 - 8