Emergency medicine works differently than primary care. The ER workup is designed to rule out life threatening conditions first, then narrow toward a diagnosis. Here is how emergency doctors think and why testing often starts broad before becoming precise.

Cardiac arrest occurs when the heart suddenly stops pumping blood and there is no pulse. Learn how CPR, defibrillation, and rapid identification of reversible causes can restore circulation and save lives.

A stroke occurs when blood flow to part of the brain is suddenly blocked. Learn the warning signs, why time is brain, and how clot busting medication and mechanical thrombectomy can restore circulation.