"Recently, I was working at the pharmacy in a community clinic when I heard a commotion coming from the waiting room. I rushed out to see what was happening and found a female patient lying unconscious on the ground. The patient's daughter said she passed out after complaining of pain in her chest. I checked her vital signs and found she was in cardiac arrest. I yelled out for my pharmacy tech to call 999 and to have another team member bring me the AED. I started CPR and was joined by a team member who hooked the patient up to the AED. She was not in a shockable rhythm, so we continued CPR until the ambulance arrived. Unfortunately, we found out later that the patient had a massive myocardial infarction, and there was nothing anyone could do for her."