Definitions of terminology used

VTE

• Expired tidal volume
• Amount of gas passing in and out of the lungs in one cycle

PEEP

• Positive end expiratory pressure
• Increases the surface area of the alveoli

PIP

• Peak inspiratory pressure
• The highest level of  pressure applied to the lungs during inspiration

Flex

• Enhances patient comfort
• It will lower the pressure when the patient exhales and slowly increase the pressure on inspiration

Ramp

• Allows the machine to start at a lower pressure and then increases the pressure over a set time frame
• This allows the patient to get use to the mask at lower pressures first

Leak

• The amount of air escaping from the mask
• Should be less than 60 if possible
• Usually due to the fit/size of the mask

FiO2

• Fraction of inspired oxygen
• Amount of oxygen being delivered to the patient