Mech vent basic modes Flashcards

1
Q

A/C

A
  • Assist/ control
  • Minimum number of preset breaths are delivered to the vent but the patient can trigger additional breahts
  • often used when mechanical ventilation is intiated
  • CMV is the same
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2
Q

CMV

A
  • continous mandatory ventilation
  • same as A/C
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3
Q

SIMV

A
  • synchronous intermittent mandatory ventilation
  • Minimum number of breaths is set. Pt is allowed to initiate spontaneous breaths in-between the mandatory breaths
  • Partital ventilatory support
  • Used for weaning
  • Distributes Vt evenly throughout lung fields reduces V/Q mismatching
  • Helps decrease pt mean airway pressure
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4
Q

CSV

A
  • Continous spontaneous ventilation
  • All breaths are spontaneous by the patient
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5
Q

PCV

A
  • Pressure control ventilation
  • Pressure is the independent variable
  • Inspiratory pressure is the set value
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6
Q

CPAP

A
  • Pt must be spontaneously breathing b/c no mandatory breaths are given
  • Pressure above atmospheric is maintained
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7
Q

IMV

A
  • INTERMITTENT MANDATORY VENTILATION
  • Mandatory breaths are delivered only when the measured minute ventilation drops below a preset threshold
  • Mandatory breath frequency can never be higher than the set rate
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8
Q

PSV

A
  • Pressure support ventilation
  • The patients spontaneous breath is supported by the ventilator during the inspiratory phase. Once the pt triggers the breath the vent adds pressure to make breathing easier
  • The pressure level is set by the operator
  • can be used to help the patient over come the airway resistance that is caused by the ETT
  • higher the set pressure the easier for the patient to take a breath
  • Time cycled and pressure limited
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