ZOLL M Series Defibrillator Rev M - Manual (Page 7)

Pulse Oximetry (SpO
2
)
SpO
2
- 5
How SpO
2
is Displayed
The M Series Pulse Oximetry option displays a
plethysmograph waveform derived from the sensor. The
numeric oxygen saturation value is displayed as
"SpO2%". A signal strength indicator, left of the SpO
2
field, shows the relative change in the pulsatile signal
(see below).
Note: The SpO
2
numeric will display dashes (-----)
whenever pulse oximetry values are likely to be
contaminated due to the presence of excessive
ambient light, inadequate perfusion, high signal
artifact, a defective or disconnected sensor, etc.
Displaying the Plethysmographic
Waveform
The M Series unit can display one or two waveforms in
Monitor, Defib, or Manual (AED) mode, as long as the
defibrillator is not charging or ECG analysis is not in
progress. The unit displays only one waveform in Pacer
mode.
With SpO
2
monitoring, the unit can display a
plethysmographic waveform below the ECG trace for a
visual indicator of SpO
2
monitoring.
Pressing the Wave2 softkey from the physiological
monitoring menu cycles the display from the capnogram
waveform, to the plethysmograph waveform, to no
second waveform displayed.
The unit temporarily removes the second waveform from
the display when the user presses the CHARGE,
ANALYZE, or ENERGY SELECT buttons, or the Sync
On/Off softkey. The unit restores the second waveform
to the display:
• 3 seconds after a shock is delivered
• 3 seconds after an analysis is completed, unless
the defibrillator is charging
• 4 seconds after the last Energy Select button
press
• 3 seconds after Sync mode is turned off
Physiological Monitoring
When the user turns the M Series unit to MONITOR
mode, the physiological monitoring menu will be
displayed with the following softkeys: Param, Wave2,
ID#, Alarms and 12 Lead (if installed).
Param Softkey
When the Param softkey is pressed, the following
softkeys appear: Select, Enter, and Return.
Pressing the Select softkey scrolls the highlight area
among the different available physiological parameters.
Pressing the Enter softkey selects the highlighted
parameter. Pressing the Return softkey returns the user
to the physiological monitoring menu.
When the user selects the SpO
2
parameter, the following
softkeys appear: Sens., Average, Alarms and Return.
Sens. (Sensitivity) Softkey
The Sens. softkey allows the user to select either
“Normal” or “High” sensitivity for SpO
2
monitoring.
The “Normal” sensitivity setting is the recommended
setting and should be selected for most patients.
The “High” sensitivity setting allows SpO
2
monitoring to
be performed even under very low perfusion conditions.
Such conditions may include severe hypotension or
shock. When the “High” sensitivity setting is used
however, SpO
2
results are more easily contaminated by
artifact. In order to assure accuracy of SpO
2
readings
when the “High” sensitivity setting is in use, it is
recommended that the patient be carefully and
continuously observed.
Normal and High sensitivity modes can be selected by
pressing the Sens. softkey. The highlight toggles
between the “Normal” and “High” options, allowing the
user to select the appropriate sensitivity.
Signal Strength
Indicator Numeric Oxygen
Saturation
Alarm Status
Indicator
Param Wave 2 Alarms 12 Lead ID#
00:15
SpO2%
98
ECG
PADS
70 x1
ECG
LEAD SIZE HR
SpO2
Enter Select Return
SpO2
EtCO2
NIBP
Average Sens. Return
Alarms
Enter Sens. Return
Normal
High