ECG lead wires are an indispensable and important part of ECG testing. Correct use and maintenance of ECG lead wires are essential for obtaining accurate and clear ECG signals. During the monitoring process of medical staff, ECG lead wires need to be used and maintained correctly to ensure the accuracy and signal quality of ECG testing.

1. Correct use of ECG lead wires

(1) Select appropriate lead wires

Different types of ECG tests require different numbers and types of lead wires, such as the standard 12-lead ECG lead wire. Before performing an ECG test, select appropriate lead wires according to the doctor's advice and test needs to ensure the comprehensiveness and accuracy of the test results.

(2) Correctly attach lead electrodes

Correct placement of ECG lead wires is critical. Limb lead electrodes should be placed on the right forearm (RA), left forearm (LA), right lower limb (RL), and left lower limb (LL). The chest lead locations include V1 to V6, which are placed at specific locations on the sternum, clavicle, and axillary line.

(3) Ensure that the lead wires are firmly connected

When connecting ECG lead wires, ensure that the connection between the lead wire and the ECG instrument and the lead electrode is firm and stable to avoid looseness or poor contact. Check the connection of the lead wire regularly and adjust or replace bad connection parts in time to ensure the normal transmission of ECG signals.

2. Maintain ECG lead wires

(1) Clean lead electrodes regularly

The lead electrodes of ECG lead wires need to be cleaned regularly to ensure conductivity and signal quality. When cleaning the lead electrodes, use warm water and mild soap to gently wipe the surface of the lead electrodes. Avoid using alcohol or other irritants to avoid damaging the outer coating of the lead electrodes, thereby damaging the lead effect.

(2) Avoid bending and pulling the lead wires

When using and storing ECG lead wires, avoid bending or excessively pulling the lead wires to avoid damaging the internal wires of the lead wires and affecting the conductivity. When storing the lead wires correctly, they should be placed in a flat, dry place to avoid moisture, heat or pressure to extend the service life of the lead wires.

(3) Check and replace the lead wires regularly

ECG lead wires are consumables. After a period of use, they will age and wear out, which will affect the conductivity and signal quality. Therefore, regularly check the status of the ECG lead wires, such as appearance, connecting parts, etc., and replace aging or damaged lead wires in time to ensure the accuracy and reliability of the ECG test results.

The correct use and maintenance of ECG lead wires are essential for ECG testing. By selecting appropriate lead wires, correctly placing leads, maintaining stable connections, and regularly cleaning and checking the status of lead wires, you can ensure the accuracy and clarity of ECG signals and extend the service life of lead wires. Therefore, when performing ECG testing, it is important to pay attention to the correct use and maintenance of ECG lead wires to improve the accuracy and reliability of test results.