User manual

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PEEP - positive end expiratory pressure or continuous positive pressure in the
airways.
Information on frequency:
f
total
- total breathing frequency, i.e. the number of spontaneous and guided breaths
during eight cycles, re-calculated to 1 minute; evaluation takes place after each breath.
f
spont
- number of spontaneous breaths during the previous eight cycles, re-calculated
to 1 minute; evaluation takes place after each breath.
Information on volume:
V
T vent
- inspiratory tidal volume measured in the ventilator and displayed in the
beginning of the next breathing cycle.
V
T exp
- expiratory tidal volume measured by the flow sensor, displayed in the
beginning of the next inspiratory cycle; as this measurement takes place near the
patient, the resulting inaccuracies caused by the compression volume allow for reverse
evaluation of the system’s tightness.
V
exp/min
- expiratory minute volume (minute ventilation) calculated as the sum of
expiratory volumes (spontaneous or guided) per 1 minute; re-evaluated anew after
each breath.
Information on flow, time and O2 concentration:
Insp Flow - maximum inspiratory flow during one breath. It is evaluated in litres per
minute.
Oxygen - F
I
O
2
, oxygen fraction in the inspiratory mix (%) evaluated directly before
the inspiratory output for the patient’s connection.
t
exp pat
- real expiratory time in seconds; it is defined as the time between the beginning
of expiration and the reaching of the flow decrease to the level of 5 % of the peak
expiratory flow.
I:E - ratio between the durations of inspiratory and expiratory parts of the breathing
cycle expressed in the form of 1:X.
Information on lung mechanics:
C - static lung compliance; it is calculated from the expired volume pressure and
pressure plateau; the compliance value can only be counted in case of ventilation with
inspiratory delay (“pause” LED diode is shining).
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