Basic Mechanical Ventilation Flashcards
1
Q
Physics
A
Flow pressure (Paw) = Flow x resistance + Volume / compliance + baseline pressure (PEEP)
Only possible to change 2 out of 3:
Pressure
Flow
Volume
The other becomes dependent variable
Flow = volume / time
2
Q
Main determinants
A
3
Q
Inspiratory time
A
4
Q
Respiratory Compilations
A
5
Q
Ventilation Associated Lung Injury
A
6
Q
Gas trapping
A
7
Q
cardiovascular effect
A
NIV supplies positive pressure, causing reduced LV transmural pressure, leading to reduced after load
8
Q
Hypotension
A
Drug induced
Gas trapping
Tension pneumothorax