2042480-001 C Dash 2500 Patient Monitor 9-3
ECG: Description
Description
Electrocardiographic (ECG) monitoring is accomplished in the Dash 2500 Patient
Monitor by the EK-Pro* algorithm that uses 3-electrode or 5-electrode
configuration. The 3-electrode (LL, LA, RA) configuration derives a waveform
from lead I, II, III and displays this waveform as the primary lead. The 5-electrode
(LL, RL, LA, RA, V) configuration derives waveforms from lead I, II, III, aVR, aVL,
aVF, VA and displays this waveform as the primary lead. In 5-electrode
configuration, another waveform can be displayed as the secondary lead. Leads
can be changed without changing electrode sites; a waveform cascade feature
is included in 5-electrode configuration. When 3 electrodes (RA, LL, LA) are
connected to the patient, waveforms I, II, and III are available to view and/or
record. When 4 electrodes (RA, LL, LA, RL) are connected to the patient,
waveforms I, II, III, aVR, aVL or aVF are available to view and/or record. When 5
electrodes are connected to the patient, waveforms I, II, III, aVR, aVL , aVF or a
single VA lead (i.e., chest lead) are available to view and/or record. ECG
waveforms can be displayed at sweep speeds of 12.5 mm/s, 25.0 mm/s, and
50.0 mm/s. The vertical scale on the display is indicated by the left-hand bracket
which shows the scale of 1 mV high. The height of the waveform may be
decreased by one half and one fourth or increased by a factor of 2. You can
capture up to 16 seconds of a waveform by pushing the Freeze hardkey.
When monitoring a patient with a cardiac pacemaker, you must activate a
pacer spike detection feature for the selected lead.
The ECG parameter has audible and visible alarms to let you know when a lead
is disconnected, to warn you of asystole, and to inform you when significant
noise is making it impossible to calculate a heart rate.
ECG is the primary source of heart rate (HR/Pulse) data, which is displayed in the
HR vital signs field. Instructions for monitoring HR/Pulse are in the Heart Rate/
Pulse section of this manual. The color of the HR/Pulse value may change based
on the current source.
Indications and Contraindications
The ECG parameter is indicated for use in obtaining electrocardiographic
waveforms and heart rate as a component of the Dash 2500 Patient Monitor.
This device is not designed, sold, or intended for use except as indicated.
WARNINGS
Make sure that equipment using high-intensity radio
frequencies (e.g., an electrosurgical unit) is properly grounded
to reduce the risk of inducing current into cables and
electrodes. Such current may interfere with the ECG signal.
When making connections, attach the lead wires only to the
cable and attach the cable only to the ECG connector on the
side of the Monitor.
*EK-Pro is a registered trademark of GE Medical Systems Information Technologies.
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