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Quick Instructions For CV4+ Setup for Infant Ventilation

(Constant Flow CMV mode & Infant Nasal CPAP)

 

Settings achieved by either turning appropriate knobs or selecting item on screen (highlighting it) then adjusting value up or down using arrow keys-lower right on screen.

  • Install circuit and test lung or cap for end of circuit
  • Turn Power on
  • Make sure CONSTANT Flow Mode is ON
  • Select CMV
  • Adjust flow to desired level (0-29 lpm)  Note: 6 lpm is plenty for most situations-more for large leaks around ET tube, or larger infants
  • Use PIP (or Max Press) knob to adjust vent to desired Peak Inspiratory Pressure. Observe value in upper left portion of screen while adjusting
    • Note: Clarify what the Peak Pressure should be.  Most ICU vents that refer to a pressure of 15/5 are actually delivering 20 cm of Peak Inspiratory Pressure
  • Use PEEP knob to adjust desired PEEP level (Observe value in lower left corner of screen while adjusting)
  • Set desired mandatory RATE
  • Set desired Inspiratory Time (the standard setting these days is between 0.3 and 0.4 seconds)
  • Set proper FLOW TRIGGER level (1-20-with 1 being easiest to trigger)
  • Once patient is on vent, use Auto-Set to initially set alarms or manually adjust High/Low alarm limits accordingly (ALARM 1-ALARM 2 Screens)
  • If infant nasal CPAP is desired use Constant Flow CPAP mode and adjust PEEP knob to achieve desired CPAP levels (Be sure to set low CPAP alarm on Alarm 2 screen)

 

POINTS TO REMEMBER

  • Turn PIP (MAX PRESS) and PEEP knob to minimum position when vent is OFF.
  • Use Constant Flow Mode for CPAP.
  • Pneumotach is not used in infant ventilation.
  • If piped-in air is not available then blender switch (on blender model) should be in the >15 lpm position to assure that 12 lpm of gas is not wasted due to blender bleed flow (in this case, refer to measured oxygen concentration reported on Alarm 2 screen).
  • If exhalation valve makes a honking sound, remove diverter cup on bottom of exhalation valve.