624074/07 7-33
V’alv
(ml/min)
Monitoring 2 Alveolar minute ventilation. Valv * f (normal-
ized to 1 min). Permits assessment of actual
alveolar ventilation (as opposed to minute ven-
tilation).
Available if CO
2
sensor is installed.
V’CO
2
(ml/min)
Monitoring 2 CO
2
elimination. Net exhaled volume of CO
2
per minute. Permits assessment of metabolic
rate (e.g., it is high with sepsis, tetanus, etc.)
and treatment progress.
Available if CO
2
sensor is installed.
VDaw
(ml)
Monitoring 2 Airway dead space.
Effective volume lost in the conducting airways.
A relative increase in dead space indicates
increased respiratory insufficiency and can be
seen as an indicator of the current patient situ-
ation. Patients with high dead space in combi-
nation with muscles deficiency are at particular
risk.
Available if CO
2
sensor is installed.
VDaw/VTE
(%)
Monitoring 2 Physiological dead space fraction at the upper
airways.
Available if CO
2
sensor is installed.
VeCO
2
(ml)
Monitoring 2 Exhaled CO
2
volume. Updated breath by
breath.
Available if CO
2
sensor is installed.
ViCO
2
(ml)
Monitoring 2 Inspired CO
2
volume. Updated breath by
breath.
Available if CO
2
sensor is installed.
Table 7-1. Monitored parameters
Parame-
ter (unit)
Monitoring
Window
Definition
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