An automated external defibrillator (AED) is a portable device designed to analyse heart rhythm and advise whether an electrical shock may help restore a normal rhythm. AEDs are used during sudden cardiac arrest, a condition where the heart stops pumping effectively due to electrical dysfunction. Sudden cardiac arrest is often linked to specific arrhythmias (abnormal […]
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Sudden cardiac arrest (SCA) occurs when the heart stops pumping effectively due to a disruption in its electrical system. This prevents blood from circulating to the brain and vital organs. Sudden cardiac arrest is considered a medical emergency and requires trained responders and emergency medical services. While SCA can be serious, public awareness, early recognition,
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An automated external defibrillator (AED) is a portable device that can analyse heart rhythm and, if needed, deliver an electric shock to help restore a normal rhythm. AEDs are used during sudden cardiac arrest—when the heart stops pumping effectively and blood flow to the brain and vital organs is interrupted. AEDs are designed for public
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Groin muscle pain is commonly caused by a groin strain, which occurs when the inner thigh muscles are stretched beyond their normal range. This stretching can lead to small muscle fibre tears that cause pain, swelling, and tenderness. The groin muscles (adductors) play an important role in pulling the legs toward the midline and stabilizing
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A broken leg (leg fracture) is a common injury resulting from falls, sports, recreational activities, or motor vehicle incidents. While often painful and mobility-limiting, most broken legs are not life-threatening. Early recognition of fractures and safe first aid awareness can help prevent further harm. Relevance in Canadian First Aid & Workplaces Leg fractures are seen
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A broken arm (arm fracture) can be painful and may limit movement, but it is typically not life-threatening. Knowing how to recognize a broken arm supports safer decisions in workplaces, sports, and community settings—especially after falls, collisions, or physical activity. Relevance in Canadian First Aid & Workplaces Broken arms are common in sports, recreation, and
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Orthostatic hypotension refers to a sudden drop in blood pressure when a person stands up quickly. Blood pressure reflects the force of blood against artery walls. When standing, gravity pulls blood toward the legs, and the body usually adjusts to maintain steady blood flow to the brain. If this reflex response is delayed or weaker,
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An eardrum rupture (also called a perforated eardrum) is a small tear or hole in the tympanic membrane—the thin tissue that separates the outer ear canal from the middle ear. This membrane helps transmit sound vibrations, so damage can temporarily affect hearing. Most eardrum ruptures heal naturally over time. Permanent hearing changes are uncommon. Relevance
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The rotator cuff is a group of four muscles and tendons that help stabilize the shoulder and support movements such as lifting, reaching, and rotating the arm. Injuries to the rotator cuff can include tendinitis, bursitis, strains, and tears. These injuries are common in activities that involve repetitive arm use, overhead motion, or sudden strain.
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Shin splints is a common term for pain along the front or inner edge of the shinbone (tibia), usually between the ankle and the knee. It often affects people who do moderate to heavy physical activity, especially those who run, jump, or do a lot of stop-and-start movement. First aid & workplace relevance In Canada,
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