Gema Cardio-C Manual De Uso página 47

47
• Chest Measurement
It is recommended to take ECG measurement
on chest, since the signal detected by this way
is stronger and with less interference.
The ECG waveform detected by Chest
Measurement is similar to the Lead V4 or V5
of regular ECG examination. Hold the device with
the right hand, make sure that the fingers touch
the metal electrode II and III reliably, as shown
in figure 4.4, place the electrode I on the left chest
align with the midclavicular line (V4 position) or the
anterior axillary line (V5 position) and on the level
of the 5th intercostal space.
Note: keep at ease and clean the electrode I by using the wet cloth before
measuring. If the waveform baseline wanders or noisy waveform appears,
hold your breath for a moment to get stable and clean signal.
measurement by external lead wires
The ECG signal which is detected by external lead wires is more stable than
that by hand measurement. ECG measurement by external lead wires can be
done by placing the electrodes on limbs or chest respectively.
• Electrodes placement on limbs
On default menu screen enter " " option setup menu
to select "limb lead" for signal input. By this way,
the 3 channels of limb lead I, II and III can be measured
and displayed simultaneously and continuously.
Either adhesive electrodes or limb clip type electrodes
(optional) can be used to do the measurement.
The location of the electrodes is shown in figure 4.5.
R (red): place on interior of right arm
(between the wrist and the elbow);
L (yellow): place on interior of the left arm
(between the wrist and the elbow);
F (green): place on interior of the left leg (between the knee and the ankle);
N (black): place on interior of the right leg (between the knee and the ankle)
operation: Connecting the lead wires after placing the electrodes well and
then insert the connector onto the device; Power on the device to select the
"limb lead" for signal input and set the measuring time on option setup menu,
then press "" ok key to start the measurement.
ENGLISH
Figure 4.4
Chest measurement
Figure 4.5
The location of
electrodes on limbs