There may be several reasons for poor ECG electrode signal conduction:
1. Oil or dirt on the surface of the skin: Oil, sweat, dirt or dead skin cells on the surface of the skin can cause poor contact between the electrode and the skin, which can affect signal transmission.
2. Poor electrode contact: The electrode sheet is not correctly pasted to the skin, or the adhesion is not tight, which will lead to insufficient contact area between the electrode and the skin, and unstable signal transmission.
3. Electrode quality issues: Using expired, deteriorated, or poor quality electrodes can affect the transmission of the signal, because the conductive adhesive of these electrodes may have failed or be uneven.
4. Insufficient electrolyte between the electrode and the skin: electrocardiogram electrodes usually require an electrolyte medium (such as electrolyte gel or conductive paste) between the skin, and if this medium is insufficient or dry, signal transmission will be affected.
5. Cable or connector damage: If the cable, connector or connector of the ECG device is damaged or in poor contact, it will also affect the transmission of the signal.
6. Environmental interference: external environmental factors such as strong electromagnetic interference, equipment failure or power instability may also cause the transmission of ECG signals to be unclear.
7. Patient position problems: If the patient is in an inappropriate position, it may cause poor contact with the electrode or produce noise, affecting the signal quality.
8. Dry or overly wet skin: If the skin is too dry, the adhesion of the electrode will be reduced; If the skin is too wet, it may cause signal distortion or increase noise.
The following measures can be taken to adjust and deal with the causes of poor ECG electrode signal conduction:
1 .Cleanse your skin
Remove oil and dirt: Gently clean the skin with warm water and soap to remove surface oil, dirt, dead skin, etc. Avoid using skin care products that contain oils or fragrances, which may affect the contact quality of the electrodes.
Wipe with alcohol: Wipe the skin with an alcohol-based wipe cloth or cotton ball to help remove oil and promote good contact between the electrode and the skin.
2. Make sure the electrodes fit
Properly fit the electrode: Ensure that the electrode sheet is accurately and smoothly attached to the skin to avoid bubbles or wrinkles. Especially in the chest, where the electrodes need to be firmly fixed (such as the chest and limbs commonly used in electrocardiograms).
Use appropriate electrode bonding techniques: Slight pressure can be used around the electrode to help it make better contact with the skin.
3. Check the electrode quality
Replace expired or deteriorated electrodes: Ensure that you are using fresh, unexpired, and qualified electrodes. Expired electrodes will lose electrical conductivity, affecting the transmission of signals.
Use high-quality electrodes: Choose reputable brands and quality guaranteed electrodes to reduce signal problems caused by poor electrode quality.
4. Use plenty of electrolyte gel or conductive paste
Supplement electrolyte gel: If the conductive gel of the electrode is dry or insufficient, timely supplement the appropriate amount of electrolyte gel or conductive paste. Ensure good electrical conductivity between the electrode and the skin to avoid signal attenuation or distortion.
Use professional conductive paste: For some special electrodes, specially designed conductive paste can be used to enhance the conduction effect of the signal.
5. Check cables and connectors
Check the cable: Make sure the cable is not damaged, broken, or bent. If the cable is damaged, replace it in time.
Check the connector: Check the contact between the electrode and the cable connector to ensure that the contact is good and firm. If the contact is loose or corroded, clean or replace the connector.
6. Avoid environmental distractions
Reduce electromagnetic interference: Avoid strong electromagnetic radiation interference from electrical equipment, especially avoid strong electric fields or wireless signal sources around electrocardiogram equipment (such as mobile phones, wireless devices, etc.). Before using the device, check whether the power socket is properly grounded.
Ensure that the equipment is working properly: Check the working status of the ECG equipment to ensure that the hardware and software are normal and there are no faults or setting errors.
7. Adjust the patient's position
Correct position: Ensure that the patient is in a stable and comfortable position to avoid the displacement of the electrode sheet or improper contact with the skin due to improper position.
Immobility: When performing an ECG examination, it is recommended that patients remain as still as possible to avoid signal interference or waveform distortion caused by movement or position changes.
8. Pay attention to your skin condition
If the skin is too dry or wet: if the skin is too dry, you can apply some oil-free moisturizer appropriately to increase the adhesion of the electrode. If the skin is too wet, you can gently dry it with a clean towel to ensure good contact between the electrode and the skin.
Skin sensitive treatment: For patients with sensitive skin, electrodes and conductive gels that are low irritant or specifically designed for sensitive skin are used.
9. Maintain and check the equipment regularly
Equipment calibration: Ensure that ECG equipment has been calibrated regularly to maintain the accuracy of its measurements. Equipment failure or long-term uncalibrated instruments can affect the quality of signal acquisition.
Check the battery power of the device: Check the battery power of the device to ensure that the power is sufficient to avoid signal fluctuations or device faults caused by insufficient power.
Through the above steps, the problem of poor signal conduction of the ECG electrode can be effectively solved to ensure the accuracy of the electrocardiogram test results. GOCENG medical supplies high quality ECG electrode with good offer , check more at : www.gocengmed.com
