Mechanical ventilation (main)

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Modes


CPAP

- needs spont breathing pt

- not for fatiguing pt

- no back up rate


CONTROL MODE

- only in OR

- machine initiates and delivers breath

- fixed rate and TV


ASSIST CONTROL (AC)

- preset rate and TV

- pt able to trigger additional breaths


SYNCH INTERM MANDATORY VENT (SIMV)

- preset rate and TV synch to pt effort

- for each additional breath triggered by pt- vent delivers variable TV depending on pt effort and condition of lung

- because of pt effort- not recommended for tired or septic pt


PRESSURE SUPP0RT

- use with SIMV or PEEP- not AC

- preset boost during inspiration of spont gen breath


GENERAL

RR X TV =

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