Pulmonary contusion results from serious blunt force trauma. Common causes include car accidents, falls, and sports collisions. Symptoms appear 24-48 hours after injury. Early symptoms include chest pain and shortness of breath
Paramedics respond to emergencies via ambulance and provide medical care. They evaluate patients, perform basic treatments, and transport them to hospitals. Paramedics work in ambulances, helicopters, or fire trucks
Anesthesiology provides perioperative care before, during, and after surgery. Specialists prevent and mitigate pain using various anesthetic agents. Core requires knowledge of physiology, pharmacology, and medical physics
Manual resuscitators use bag valve masks with hand-squeezed plastic bulbs. Expired air resuscitators deliver up to 16% oxygen through exhaled air. Pulmotor was first practical oxygen delivery device in 1907
EMTs provide emergency medical services in ambulances and fire departments. EMTs work under physician-written protocols in various settings. Some EMTs are paid employees, others are volunteers
Ventricular fibrillation causes heart ventricles to quiver randomly. Results in cardiac arrest with loss of consciousness and no pulse. About 10% of cardiac arrest cases initially show V-fib. Can occur due to coronary, valvular, or cardiomyopathy diseases