Dräger Medical Narkomed MRI-2, Operator'S Instruction Manual

Page: 131 / 178

Breathing Pressure Monitoring 13
13-7
Part Number: 4116841-001 Rev: E Narkomed MRI-2 Operator’s Manual
Breathing
Pressure
Trace
Window The Breathing Pressure Trace window displays the breathing pressure
waveform, and the pressure high and threshold pressure alarm limits.
Pressure measurements are displayed in units of cm H
2
O and are
automatically scaled from 0–20, 0–50, or 0–100 cm H
2
O. If the scale
changes, the positions of the waveform and alarm limits also change
relative to the new scale. The window shown below in Figure 13-4 has a
scale of 0–20 cm H
2
O.
Figure 13-4. Breathing Pressure Trace Window
• The peak of the waveform corresponds to the peak pressure.
• The slope of the trace as it rises toward the peak pressure is correlated
with the inspiratory flow rate; the steeper the slope, the higher the
flow rate.
• The amount of pressure that the baseline is raised from zero
corresponds to the patient's positive end expiratory pressure (PEEP).
• The length of the plateau from peak pressure to the decrease in
pressure corresponding to expiration is equivalent to the length of the
inspiratory pause (if present).
OP87016
PEAK
18
MEAN
7
PEEP
2
35
12
PRESSURE
HIGH ALARM
LIMIT
THRESHOLD
PRESSURE (APNEA)
ALARM LIMIT
INSPIRATORY
FLOW RATE
(SLOPE) PEAK
PEEP
INSPIRATORY PAUSE
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