User's Manual

SpO2 (91343 only)
071-0774-00 Rev. A 3-7
P/N 061-0801-xx, for more information on battery service life.) This selection is
made by setting DIP switches 3 and 4 beneath the battery compartment. The
default setting is in continuous.
Table 2: DIP Switch 3 and 4 Settings
Viewing Pulse Rate
In normal operations, the heart rate for display is obtained directly from the
acquired ECG leads or an alternate rate source. SpO
2
can be used as the
alternate source, if it is set for continuous measurement. When it is set for
episodic measurement, SpO
2
cannot be used as an alternate rate source.
SpO
2
with Intra-Aortic Balloon Pumps
Enabling the intra-aortic balloon pump (IABP) feature informs the SpO
2
software
that an IABP is in use. The 91343 must differentiate between true arterial
pulsations and those produced by the IABP. With the IABP feature enabled, the
transmitter excludes the IABP-generated pulsations from the calculation for SpO
2
.
The IABP feature also may be useful with patients experiencing irregular heart
rhythms. Enabling the IABP feature permits the transmitter to reject irregular
pulses, providing a more accurate SpO
2
measurement.
CAUTION:
•No SpO
2
monitoring occurs between episodic sampling
intervals. Clinical practice or medical judgement should be
used in selecting continuous or episodic SpO
2
monitoring
mode for each specific patient.
DIP Switch 3 DIP Switch 4 Effect
OFF OFF Continuous sampling (default)
OFF ON 2 minute sampling interval
ON OFF 5 minute sampling interval
ON ON 30 minute sampling interval
CAUTION:
• DIP switch 8 must remain OFF for normal operation.
!
• When the IABP feature is enabled, the pulse rate obtained from
SpO
2
may not match the heart rate obtained from ECG.
• In cases of excessive patient motion or artifact, the accuracy of
the SpO
2
measurement may be compromised when the IABP
feature is enabled.
• When the IABP operation is selected, the SpO
2
status key in
the Channel Format menu indicates IABP.
To display heart rate from SpO
2
sensor:
1 Touch ECG
2 Touch SETUP
3 Touch RATE SOURCE
4 Select SpO2 ON
5 Select SpO2 as rate source
To use with balloon pump:
1 Set transmitter DIP switch 6 to
ON
To view the current setting of the
IABP DIP switch:
1 Touch ECG
2 Touch CHANNEL FORMAT
3 Select SpO
2
ON