Chapter 7: ECG
7-2 VS2000 Vital Signs Monitor Operation Manual
The monitor's ECG circuitry amplifies, filters, and digitizes (converts analog
signals to digital signals) the received electrical potentials. The digitized signals
are used to display the ECG waveform and calculate the ECG heart rate
7.4 Attaching the Patient
NOTE! Follow institutional standards when applying ECG electrodes.
NOTE! The monitor is protected against damage from defibrillator,
diathermy, and electrocautery discharge.
1. Skin Preparation for Electrode Placement
Good electrode-to-skin contact is important for a good ECG signal, as the skin
is a poor conductor of electricity.
a) Select sites with intact skin, without impairment of any kind.
b) Clip or shave hair from sites as necessary.
c) Wash sites thoroughly with soap and water, leaving no soap residue.
We do not recommend using ether or pure alcohol, because this dries the skin
and increases the resistance.
d) Dry skin thoroughly by rubbing briskly to increase capillary blood flow in the
tissues.
e) Use ECG skin preparation (abrasive) paper to remove dead skin cells and to
improve the conductivity of the electrode site.
2. Connecting ECG Leads
a) Attach the clips or snaps to the electrodes before placing them. If you are
not using pre-gelled electrodes, apply electrode gel to the electrodes before
placement.
b) Place the electrodes on the patient.
NOTE! To remove the ECG cable, grip the connector and pull back firmly.
DO NOT pull on the ECG cable to remove the ECG connector from
the monitor.
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