Monitoring
126 Instructions for use Fabius plus SW 3.n
Breathing volume monitoring
The breathing volume is measured by the flow
sensor based on thermal anemometry. The values
of the flow sensor are converted in the following
parameters and displayed:
– Minute volume (MV)
– Tidal volume (VT)
– Respiratory rate (Freq)
Parameter field for breathing volume
The following information is displayed in the
parameter field for breathing volume:
A The respiratory rate (Freq) indicates the
breaths during the past minute in breaths per
minute (bpm) (1/min).
The display is activated after 2 breaths.
The display range is between 2 bpm (1/min)
and 99 bpm (1/min).
B The tidal volume (VT) indicates the expiratory
volume for every breath in milliliters (mL).
The display range is between 0 mL and
1400 mL.
C The measured value for the minute volume
(MV) continually indicates the volume of the
gas breathed out in the past minute in liters per
minute (L/min).
The display range is between 0.0 L/min and
99.9 L/min.
D Upper alarm limit of the minute volume in L/min
E Lower alarm limit of the minute volume in L/min
CAUTION
Risk of incorrect measured values
The breathing volume monitoring can be
compromised by the operation of electrosurgical
devices or short-wave and microwave diathermy
devices in the immediate vicinity.
NOTE
Sudden, irregular expiratory flow can cause
erratic changes in the display of the tidal volume
and the respiratory rate. Before reading the
display again, wait at least one minute.
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