Editing Emergency department (section)

===[Sudden] Cardiac Arrest===
{{Main|Cardiac arrest}}

[[Cardiac arrest]] is a sudden (in most cases, unexpected) loss of heart function, breathing, and consciousness.<ref>{{Cite web |title=Sudden Cardiac Arrest |url=https://www.mayoclinic.org/diseases-conditions/sudden-cardiac-arrest/symptoms-causes/syc-20350634}}</ref> This emergency usually results from an electrical disturbance in the heart that disrupts its pumping action, stopping blood flow to the rest of the body. It is different from a heart attack, where blood flow to a part of the heart is blocked. Cardiac arrest may occur in the ED/A&E or a patient may be transported by ambulance to the emergency department already in this state. Treatment is basic [[life support]], [[Automated external defibrillator|Automated External Defibrillator]] (AED), and advanced life support as taught in advanced [[life support]] and [[advanced cardiac life support]] courses.  Cardiac arrest is not a condition that can be self-diagnosed. It requires immediate medical attention and diagnosis by a healthcare professional.