A free, self-paced textbook in 6 chapters. Read a chapter, then drill it with the 51 companion flashcards using spaced repetition.
First aid is the immediate and temporary care given to a person who is injured or suddenly ill. Its purpose is to prevent the casualty's condition from worsening, to promote recove...
Problems with the airway can become fatal within minutes, so recognizing and relieving obstruction is one of the most important first aid skills. The signs of an obstructed airway...
Several medical conditions require the rescuer to act as quickly and calmly as in a trauma situation. A heart attack typically presents with central chest pain lasting more than \(...
Burns range from minor to life-threatening and are graded by depth. A first-degree burn affects only the outer skin and causes redness, a second-degree burn involves deeper layers...
Extreme temperatures can quickly overwhelm the body's ability to regulate itself. Heatstroke is a medical emergency marked by a body temperature above \(40\,^{\circ}\mathrm{C}\) (\...
Minor but common complaints such as nosebleeds are also part of everyday first aid. The casualty should sit upright and lean forward, the soft part of the nostrils pinched together...