3-1
Chapter 3 – Vital Sign Parameter Usage
NOTE: The Prism SE monitor can be used during defibrillation, but
certain parameter readings may be inaccurate for a short time.
ECG
Prism and Prism SE monitors provide clinical viewing of the conduction of electrical impulses
through various parts of the heart (ECG). Limb lead (I, II, and III) measurements are available
when using a 3-lead ECG cable. Precordial leads (V1, V2, V3, V4, V5, and V6) can be viewed by
using a 5-lead cable and selecting VLD (V-lead) on ECG setup page.
In many clinical situations it is necessary to view two ECG leads simultaneously to accurately
assess a patient’s condition. This “dual-lead” capability is an optional feature in MDE monitors.
WARNING: For pacemaker patients, HR may continue to count
pacemaker artifact during cardiac arrest or other arrhythmia. Keep
pacemaker patients under close surveillance.
WARNING: Prism and Prism SE monitors are intended only to be
used with “safety-protected” ECG cables and lead wires. These cables
and lead wires prevent inappropriate connection of ECG lead wires to
a power source, which could potentially result in burns or
electrocution. ECG electrode wires should only be connected to
patient ECG cable.
WARNING: After applying a defibrillator discharge to a patient
being monitored by Prism SE, wait 5 seconds for a valid ECG
indication on the monitor.
NOTE: For pacemaker rhythms, confirm PACE ON/OFF softkey is
ON to enable pacer rejection and flagging. When PACE softkey is ON,
monitor will indicate correct heart rate for all pacer pulse amplitudes
and widths, with and without overshoot/undershoot (per AAMI/ANSI
Standard EC-13, 1992, paragraphs 3.1.4.1 and 3.1.4.2). If PACE
softkey is OFF, cardiotach may erroneously detect pacer artifact.
Pacemaker output pulse detection and rejection vary from patient to
patient and with type of pacemaker and pacing catheter.
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