Skip to main content

The Proper Application and Removal of ECG Electrodes

We often have ECG machines sent to us for checking as the users state that the machine is not reading properly. When we test them, we find out there is nothing wrong. 

Related image

There are many reasons for this issue. A common problem is that the paper is inserted incorrectly, and another problem is the skin of the patients is not being prepared properly.

The skin should NOT be cleaned with an alcohol swab before applying the electrode as the alcohol is drying and will prevent good conductivity through the electrode.

Here is a step by step guide on how to apply the electrodes

1. Clean & prepare the skin

All application sites need to be clean, dry and free of lotions. The site always needs to be washed with soap and water and then dried before placing the electrodes. Using alcohol should be avoided as it can dry out the skin, increasing skin impedance and trace artifacts. If needed, any excessive hair should be removed at the placement site.

2. Apply the electrodes

First the liner needs to be removed and the electrode is then placed on the clean, prepared skin. To ensure good adhesion, the electrode needs to be rubbed around the outside to activate the pressure-sensitive adhesive. The rest of the electrodes are then applied for consistent, high-quality traces.

3. Remove the electrodes

To ensure there is minimal patient discomfort, the electrode needs to be peeled back slowly in the direction of the hair growth while supporting the skin. The electrode should never be pulled fast or directly upwards.

It is important that an ECG is recorded correctly and accurately – by applying an ECG electrode properly, medical personnel can ensure that there are no false ECG clinical alarms. 

Related image

To learn more about the application and removal of an ECG electrode, watch this helpful video…

SA Healthcare is an international “one-stop shop” for medical companies carrying all types of medical consumables and capital equipment, including ECG machines, such as the D-Heart smartphone ECG device, take a look at it here.

At SA Healthcare we have a strong technical department that can give our customers the technical support that they need. Whether assisting with the manufacturer’s guaranty, providing spare parts for selected medical equipment, aiding with repairs or fixing medical devices onsite.


Popular posts from this blog

The Shangrila 510S: A state-of-the-art Emergency Transport Ventilator

The Shangrila 510S is the newest emergency transport ventilator that combines advanced technology as well as all the latest ventilation features. The Shangrila 510S is fully equipped and offers all the necessary functions and a clever design – all for an affordable price. Let’s take a look at what else the state-of-the-art Shangrila 510S has to offer: - A built in battery that offers 270 minutes of battery life - Compatibility with a vehicle’s power supply - Level IPX4 waterproof to protect against rain and snow - User-friendly design - A speedy start up that enables operation within 3 seconds - Anti-shake and fall - Bedside hook and vehicle mounting board - The ability to be used in signal interference environments - Pressure trigger and flow trigger - Effective parameter monitoring - Backup ventilation for Apnea - Exact electronically controlled PEEP (Positive End-Expiratory Pressure) - Gas supply: central gas or large oxygen cylinder - Invasive and non-i

An Easy Guide to Pulse Oximeters

Oxygen is vital to system and organ function in our bodies. In order to be carried around the body, molecules of oxygen attach to the haemoglobin proteins in red blood cells. The amount of oxygen (measured as a %) in haemoglobin proteins is called ‘oxygen saturation’ and this percentage can be determined using pulse oximetry. The values from pulse oximetry are useful as they tell us how much oxygen is actually reaching the different organs and systems in the body. Pulse oximetry uses devices called pulse oximeters that attach to an area on the patient where blood flow can be measured (most commonly on the finger). Light is then shone through the skin it is positioned on and a detector on the other side measures the amount of light that makes it through. The amount of absorbed light is indicative of the oxygen concentration and as such, a pulse oximeter does not directly measure oxygen saturation but rather closely estimates it. Normal levels of oxygen saturation are between 95-100%

What is an Oxygen Concentrator and how does it work?

Well, the clue is in the name. These machines suck in normal air – which has roughly 80 % nitrogen and 20% oxygen and force it through a special sieve. They are used on patients who have poor lung function as the higher concentration of oxygen allows the patient to get sufficient oxygen. So, how exactly does an oxygen concentrator work? The oxygen concentrator’s sieves trap the nitrogen and pump out oxygen at concentrations of up to 95%. The purity of the oxygen depends on the size of the sieves and the power of the motor. From there the sieves hold onto the nitrogen until they are saturated. Most machines have a 6000-8000 hour life span. After this time, the sieves need to be replaced. Oxygen concentrators are not only convenient, but they are also affordable and do not need to be refilled on a regular basis. These factors make this medical device a commonly used item for oxygen therapy at home as well as on patients in hospital. SA Healthcare is one of th