1
This is the actual flow of a 80:20 heliox mixture when O2 is running at a flow of 10.
18L (10 x 1.8)
This is the baseline for APRV.
Phigh
This is the range for the initial setting for Thigh.
4-15
During HFOV, mPaw affects this blood gas value.
PaO2
This is the pressure setting for Phigh.
15-30, max 35
Decreasing Phigh and increasing Thigh is used to accomplish this.
Weaning from APRV
This is the equation used to determine actual flow when delivering heliox.
Actual flow = set flow x conversion factor
This is the function of Tlow.
To remove CO2
This is the actual flow if a 70:30 heliox mixture is being delivered with the O2 flow meter set at 12.
19L (12 x 1.6)
This is how oxygenation can be improved with APRV.
Increase Phigh or Thigh.
Find the rate when Thigh is 5 and Tlow is 0.5.
11 [Rate = 60/(Thigh+Tlow)]
Bias flow is the first parameter set with this mode of ventilation.
HFOV
These are the concentrations of heliox used in a clinical setting.
60:40, 70:30, 80:20 (most common)
The power setting is assessed using this.
Chest wiggle factor
This is the conversion factor for a 60:40 heliox mixture.
1.4
Oversedation will cause this during NAVA mode.
Low Edi signal
This is the affect on flow during Plow in APRV.
Adequate mPaw is being applied if this rib can be seen on CXR.
9th
The reduced need for sedation & reduced risk for VILI are an advantages of this mode.
APRV
This is how an elevated CO2 can be corrected in APRV.
Increase the difference between Phigh and Plow.
Increaseing Ti% during HFOV has this affect on CO2.
Decreases
HFOV is often used with this disease process.
ARDS
Power adjusts this variable during HFOV.
amplitude
NAVA cannot be used in this type of pt.
A pt that is not spontaneously breathing.
This gas is used for airway obstruction due to its low density.
Helium