PSV/CPAP Flashcards
PSV- Increase in PEEP with increased compliance
Increases Vtinsp, Vtexh, PIP
No change in flow
PSV- Increase in Pressure Support
Increase in Vtinsp, Vtexh, Insp. flow, PIP
Remember that PS + PEEP = PIP
PSV- Increase in % peak flow cycle
Decreases Vtinsp, Vtexh
No change in Insp. flow, or PIP
Decrease Itime, I:E
PSV- Decrease in compliance
Decrease in Vtinsp, Vtexh
No change in flow, PIP
PSV- Increase in Raw
Decreases Vtinsp, Vtexh, Insp. flow
No change in PIP
PSV- Air trapping
Decreases Vtinsp, Vtexh
No change in flow, PIP
PSV- Air leaks
Increase in Vtinsp, Insp. flow
May decrease Vtexh, or no change
No change in PIP
PSV- Increase in patient effort
Increases Vtinsp, Vtexh, Insp. flow
No change in PIP
Increased patient effort increases change in pressure, so increases Vt
