Supplement – Infinity M300 and M300+ Series – VG2.4 41
Additional information
M300 offline recordings
While the M300 is offline or the R50N recorder is not available, the last five recordings (automatic or
manual) are stored on the M300. When the connection is restored, those recordings are sent to the R50N
recorder.
Known issues
Continuous pacer spikes on M300
Reviewing stored ST complexes at Symphony
When reviewing the M300/M300+ stored ST complexes at Symphony, the three augmented leads (aVR,
aVL, aVF) are displayed in the ST complexes view only when the M300/M300+ has 12-leads available
(i.e., M300/M300+ 6-wire with TruST enabled).
ECG lead wires setting
ICS VG1 incorrectly displays % Paced and the alarm off symbol (IEC alarm off) in the heart rate
parameter field.
The alarm off symbol should not display because there are no alarms associated with% Paced.
CAUTION
Continuous pacer spikes can appear on the ECG waveform if the M300 is docked on the bedside
charger and the electrode impedances are not balanced. Continuous pacer spikes can also appear as
a result of electromagnetic interference generated by other devices in the patient’s immediate vicinity.
False pacer spikes may affect the accuracy of ECG beat classification.
To resolve this issue:
– Be sure to use new electrodes.
– Temporarily remove the Infinity M300 from the bedside charger until the electrode impedance
normalizes.
– Turn pacer detection off, if appropriate.
NOTE
In TruST 12-lead mode (ECG Lead Wires = 6 wires and TruST 12-Lead = On), leads III, aVL, and aVF
are not displayed on a remote view from a network device.
To resolve this issue, TruST 12-lead mode must be disabled, as follows:
Set TruST 12-Lead = Off,
or set ECG Lead Wires = 5.