When using an AED, what is the first step after turning it on?

The first step after turning on an Automated External Defibrillator (AED) is to attach the pads to the patient's bare chest. This action is crucial because the AED requires the pads to be in place to analyze the heart's rhythm and determine if a shock is necessary. Proper pad placement allows the device to effectively monitor the heart's electrical activity and provide guidance on whether to deliver a shock.

Attaching the pads connects the AED to the patient, enabling it to effectively assess the condition that necessitated the use of the AED. Once the pads are securely in place, the AED will instruct by either prompting further actions or advising on the next steps to take based on its analysis of the patient's heart rhythm. This prioritization ensures that the most critical aspects of defibrillation and resuscitation are addressed promptly and effectively.