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Mechanical Ventilation - Coggle Diagram
Mechanical Ventilation
Indication 'White Hat'
Impending resp failure (PE, pneumonia)
Not tolerating NIV
Post shock or surgery
Sepsis
Resp arrest
Bloods (O2 <60) (Co2 >60)
RR >35, >WOB
Ventilator Support 'White Hat'
Partial
Complete
Volume
PEEP
Increases FRC and alveoli recruitment (prevent airway closure)
SIMV
Senses inspiration pressure or flow
Allows spontaneous breaths, will increase breaths to specific volume
Long weans using SIMV
Less atrophy of resp muscles
CMV
Preset breaths and volumes
Pressure Support
Preset flow into lungs on inspiration
PC Ventilation (Pressure control)
Preset RR and preset amount of pressure
No preset Vt
Good for patients with non-compliant lungs (have high airway pressures)
PRVC
Preset breaths and preset Vt
Good for patients dont have reliable resp drive
Lungs with varying levels of compliance
Negative Side Effects of Ventilation 'Black Hat'
Loss of muscle mass
High likelihood of infection
Common Settings
Vt (6-8ml/kg)
RR 12
PEEP 5-15cm H2O
PS 5-20cm H2O
IE 1:3
Treatment 'Blue Hat'
Positioning
Vibrations
Percussions
Passive ROM
Increasing Vt volume
Psychosocial 'Red Hat'
Likely long term rehab
Acute change to function
Family stress