44 Chapter 5 Performing ECG Tests Welch Allyn CP 100 Electrocardiograph
Connecting the Leads to the Patient
1. Help the patient get comfortable. Patient preparation is important for a successful
ECG.
a. Describe the procedure. If desired, press the Help key and print the page
entitled “What Is An ECG?” for the patient to read.
b. Help the patient get warm and relaxed. Excessive patient movement could
interfere with the operation of the electrocardiograph.
c. Put the patient in a reclining position with the head slightly higher than the heart
and legs.
2. Prepare electrode locations. See Figure 27 on page 45 or Figure 28 on page 46.
a. Shave if necessary.
b. Clean with alcohol or acetone.
c. Allow to dry.
3. Attach the electrodes and lead wires securely.
• For reusable electrodes:
Straps must neither slide nor be so tight as to cause discomfort.
The electrode paste, gel, or creme must cover an area the size of the electrode
but no larger, especially on the chest.
• For disposable tab electrodes:
Place the electrode tab between the “jaws” of the electrode adapter, keeping the
tab flat.
Gently tug on the adapter to ensure that it is properly placed on the electrode.
(Each time you remove and reattach an electrode, the conductive gel becomes
weaker and less effective.)
WARNING ECG electrodes could cause skin irritation. Examine the skin
for signs of irritation or inflammation.
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