7/23/2019 Ventilatory Settings

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Ventilatory Settings (Jonathan Cheng)

3 main modes:1. Mandatory/Mechanical

- work of breathing is taken over by ventilator ccompletely

- must have poor G!/sedated if not they will fight tube

- typical after "!# in $%&' set at tidal volume of (-)ml/kg' 1*-1+ breaths/min

- can either control pressure/ volume ,control volume if dont want too big a volume to gush into cases

like bullae e mphysema/0 lungs*. !#M ,!ynchroni2ed #ntermittent Mandatory entilation

- this is used to wean patient off complete M

- can set at (44mls 5 breaths/min' on top of what patient is breathing on his own

- patients still sedated t o prevent fighting

- can be with or without pressure support ,lowest 6cm 7*4

- regular series of breaths are scheduled but the ventilator senses patient effort and reschedules

mandatory breaths based on the calculated need of the patient

3. !ponent- with or without pressure support in the form of 8i$' $' ! ,pure sponven

8i$ has # and &:

14cm 7*4 and (cm7*4pen release analogy

8i$ difference is e9uivalent to $ ( cm7*4

&& more than 1( is considered high

ook at airway resistance using the peak and graph: should be as tombstone as possible' a diagonal upslope is

indicative of difficulty e;panding lungs due to increased time reaching the peak ,high airway pressures

- #n this case' consider tweaking && to decrease the collapse to help the tombstone pattern be

achieved easier

$ll pressures are measured in cm7*4

alculate a4*/