Volume monitors
Vte
Exhaled tidal volume.
Vte/kg
Exhaled tidal volume adjusted for patient weight.
Vti
Inspired tidal volume.
Vti/kg
Inspired tidal volume adjusted for patient weight.
Spon Vt
Spontaneous tidal volume.
Spon Vt/kg
Spontaneous tidal volume adjusted for patient weight.
Mand Vt
Mandatory tidal volume: Displayed as a rolling average of either
8 breaths or one minute, whichever occurs first.
Mand Vt/kg
Mandatory tidal volume adjusted for patient weight.
Vdel
Delivered machine volume measured by the ventilator’s inspiratory
flow sensor.
% leak
Percent leakage: The difference between the inspired and exhaled
tidal volumes in terms of % difference.
Ve
Minute volume. Volume of gas exhaled by the patient during the
last minute.
Ve/kg
Minute volume adjusted for patient weight.
Spon Ve
Spontaneous minute volume.
Spon Ve/kg
Spontaneous minute volume adjusted for patient weight.
Rate/time monitors
Rate
Breath rate.
Spon rate
Spontaneous breath rate.
Ti
Inspiratory time.
Te
Exhalation time.
I:E
Inspiratory/expiratory ratio.
Note:
Not active for demand breaths.
f/Vt
Rapid shallow breathing index.
Pressure monitors
Ppeak
Peak inspiratory pressure.
Note:
Not active with spontaneous breaths.
Pmean
Mean airway pressure.
Pplat
Plateau pressure. If no plateau occurs, then the monitor displays.
***
PEEP
Positive end expiratory pressure.
Air inlet
Air inlet gas supply pressure.
O
2
inlet
Oxygen inlet gas supply pressure.
Gas composition monitors
FiO
2
Delivered percent O
2
.
Mechanics
CDYN
CDYN/Kg
Dynamic compliance (CDYN and CDYN/Kg), absolute and
normalized to patient weight.
Monitors and definitions
