Equations
Find minimal Vt for a Male 6 ft 2 in
493
Flow trigger volume limited volume cycle
VC- CMV
MIP
-100 to -150 cmH20
You are volume ventilating and the PIP increases
increased Raw
Define Pta
The pressure difference between the alveolus and the airway opening
How much time does it take to exhale 95% of the lung with a time constant of 1.2
3.6
Time trigger volume limited and volume cycle
VC-CMV mandatory
MEP
100 cmH20
You are volume ventilating and the Plateau increases
Decrease in compliance
Respiratory activity is absent or insufficient to maintain adequate oxygen uptake and carbon dioxide clearance in spite of initial therapy
Acute respiratory failure
Find Cd PIP-30 PEEP-6 PLAT-20 VT-550
23 cmH20
Pressure Trigger Volume limited flow cycle
VC-SIMV assist
VT
5-8 ml/kg
You are volume ventilating and the PIP and Plateau increases
Decrease in compliance
Acute life threatening or vital organ threatening tissue hypoxia
Acute hypoxemia resp failure
Find Desired Min Vol= Current C02 70 Desired C02 40 Current Ve5.2
9.1 ml/min
Patient trigger flow limited flow cycle
Spont
VC
65-75 ml/kg
You are pressure ventilating and the Vt drops
Increase in Resistance or Decrease in Compliance
Occurs when a person cannot achieve adequate ventilation to maintain a normal PaC02
Acute hypercapnic resp failure
Find Cs PIP-30 PEEP-6 VT-550 PLAT-20
39 cmH20
Patient trigger Pressure limited flow cycle
PS assisted
CO2
35-45
You are pressure ventilating and the Vt increases
Decrease in Resistance or Increase in compliance
BONUS
Who should we thank for creating this?
NENE and Mrs. Katrina for helping with the topics