Use Instructions
SpiroSphere
®
ECG Instructions for Use
Page 62/136
Version 02.02 • 04AUG2022
ECG Leads
To minimize artifacts, the skin of the dened lead positions has to be prepared thoroughly.
Preparing the subMectµs skin:
1. Identify the (10) electrode sites on the torso by referring to the picture and description below.
2. Remove any hair from the electrode site using a razor.
3. Wipe oils from the electrode sites with an alcohol prep pad.
4. Remove any dead skin from the electrode sites with an abrasive cleaner.
Two to three moderate rubs at each site should be sufcient.
TIP: Electrodes should be stored in an air-tight container. Electrodes will dry out
if not stored properly which will cause loss of adhesion and conductivity. Please
note the storage conditions indicated on the electrode packaging.
Correct electrode placement is important for acquiring a successful ECG recording.
Chest ECG
V1 Fourth intercostal space at the right
sternal border
V2 Fourth intercostal space at the left
sternal border
V3 Midway between V2 and V4
V4 Fifth intercostal space at the left of the
midclavicular line
V5 Anterior axillary line at same horizontal
level as V4
V6 Mid-axillary line on same horizontal
level as V4 and V5
LA Left wrist
RA Right wrist
RL Right ankle
LL Left ankle