🫀 When the heart is compressed by its own sac Cardiac tamponade is a life-threatening emergency where fluid builds up inside the pericardium and compresses the heart. 🫀 As pressure rises, the right atrium and ventricle can’t fill properly, leading to impaired cardiac output and obstructive shock. Clinically, look out for Beck’s triad: 🫀 Hypotension 🫀Jugular venous distension 🫀Muffled heart sounds Understanding the pathophysiology helps pre-hospital clinicians recognise tamponade early and a