Initiating A Recording - VivaQuant Rhythm Express RX-1 User Manual

Chapter 4: Using the RX‐1 to Monitor a Patient
Preparation of the patient's skin is important to obtain a good quality ECG recording. It is best to refer to your electrode
manufacturer for instructions on proper skin preparation techniques. However, the following points can assist in obtaining
good quality ECG recordings:

Identify the locations of the electrodes. For a two‐lead recording, use the location shown in the figure below. Placing
electrodes over bone structures will reduce artifact and noise.

Select a lead wire length to comfortably reach from the electrode location to the device. Use a white lead for the right
arm (RA) electrode, a black lead for the left arm (LA) electrode, red lead for the left leg (LL) electrode, and green for
the driven right leg (DRL) electrode.

At each electrode location, shave hair if necessary.

Using the 3M 2259 electrode, use the abrasive patch on the back of the ECG electrode to mildly abrade the skin at the
location of each electrode by gently rubbing the abrasive patch over the area three or four times. If you are using a
different electrode, follow the manufacturer's recommendations for skin preparation.

Attach the ECG lead snap to each electrode and attach the electrode to the skin. If the electrode is mistakenly attached
to the wrong location, use a new electrode to correct the mistake. Reusing an electrode can result in poor quality
signals.

Note: Make a short loop in the lead wire near each electrode and tape the loop to the skin. This will prevent the lead
wire from tugging on the electrode during movement and can improve the recording quality.

Initiating a Recording


If Hookup Mode is enabled: When the display shows Ready, press the red PTE button for 5 seconds. If the ECG
electrodes and lead wires are connected, the patient's ECG will scroll across the display. Once confirmed that the
electrodes are connected correctly, press the red PTE button again for 5 seconds to start recording. If the red PTE
button is not pressed within 120 seconds, the device will automatically start recording.

If Hookup Mode is disabled: When the display shows Ready, press the red PTE button for 5 seconds to start recording.
ECG lead placement.
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