Philips IntelliVue MP5 User Manual

7 ECG, Arrhythmia, ST and QT Monitoring Changing the ECG Filter Settings
104
♦
To change the QRS volume, in the Setup ECG menu select QRS Volume and then select the
appropriate volume from the pop-up list.
There will be no QRS tone when the MP5 is connected to a host monitor.
Changing the ECG Filter Settings
The ECG filter setting defines how ECG waves are smoothed. An abbreviation indicating the filter
type is shown underneath the lead label on the monitor display. Filter settings do not affect ST
measurement.
♦ To change the filter setting, in the Setup ECG menu, select Filter and then select the
appropriate setting.
–
Monitor: Use under normal measurement conditions.
– Ext. Monitor: Use for pediatric and neonatal patients when diagnostic quality is required
but low frequency interference or a wandering baseline may be expected. The upper edge
frequency is the same as the Diag setting and the lower edge frequency is the same as the
Monitor setting.
– Filter: The filter reduces interference to the signal. It should be used if the signal is distorted
by high frequency or low frequency interference. High frequency interference usually results in
large amplitude spikes making the ECG signal look irregular. Low frequency interference usually
leads to a wandering or rough baseline. In the operating room, the Filter reduces artifacts and
interference from electro-surgical units. Under normal measurement conditions, selecting
Filter may suppress the QRS complexes too much and thus interfere with the clinical
evaluation of the ECG displayed on the monitor. This does not affect the ECG analysis
performed by the monitor.
If AutoFilter is set to On in Configuration Mode, the filter setting will automatically be set
to Filter if electromagnetic interference is detected.
– Diag: Use when diagnostic quality is required. The unfiltered ECG wave is displayed so that
changes such as R-wave notching or discrete elevation or depression of the ST segments are
visible.
The setting Diag selects the highest available ECG bandwidth which is 0.05 to 150 Hz for the
Adult, Pedi and Neo patient category. The term “diagnostic” relates only to the ECG bandwidth
requirements for diagnostic electrocardiographic devices as outlined in the ANSI/AAMI standard
EC11-1991.
When you are using a telemetry transmitter connected via short range radio to the monitor, the
upper bandwidth for all filter settings is limited to 40 Hz.
Selecting Positions of Va and Vb Chest Leads (for 6-
lead placement)
The two chest leads for the 6-lead placement can be positioned at any two of the V1 to V6 positions.
Select the positions you have used in the Setup ECG menu, so that the chest leads will be correctly
labeled.
1 In the Setup ECG menu, select Va Lead.
2 Select the position used from the list.

Philips IntelliVue MP5 Specifications

General

Brand	Philips
Model	IntelliVue MP5
Category	Medical Equipment
Language	English