This document provides instructions for performing a 12-lead electrocardiogram (ECG). It describes introducing yourself to the patient, obtaining consent, preparing the patient by removing chest hair or washing the skin, and properly placing the 10 electrodes on the chest and limbs in their designated positions. The student is asked to explain each step out loud as they perform the procedure. Once the ECG is obtained, the electrodes are removed and the patient is covered. Key details like the patient's name, date and time are documented, along with any presence of chest pain. The clinical area is then tidied and hand hygiene is performed.