Proper bandage application is a core first aid skill used to protect wounds, control bleeding, reduce swelling, and support injured joints or limbs. Knowing how to correctly apply a bandage is essential when caring for an injured family member, coworker, or member of the public. In Canada, correct bandaging techniques are taught in Basic, Intermediate, […]
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Shingles, also known as herpes zoster, is a viral infection caused by the reactivation of the same virus responsible for chickenpox (varicella-zoster virus). After a person recovers from chickenpox, the virus remains inactive in the nervous system and can reactivate later in life, causing shingles. The condition is characterized by a painful, blistering rash and
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A partial thickness burn affects the upper two layers of the skin — the epidermis and part of the dermis. Unlike superficial burns, this type of injury can worsen over time, sometimes progressing into a full thickness burn even after initial first aid has been provided. Because partial thickness burns carry a high risk of
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Coccydynia refers to pain or tenderness in the coccyx, commonly known as the tailbone. The coccyx is the final bone at the base of the spine, and pain in this area can occur when the bone itself—or the surrounding ligaments and muscles—become strained or injured. In most cases, tailbone pain gradually improves over several weeks
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Conjunctivitis, commonly known as pink eye, is a widespread eye condition that causes redness and inflammation of the conjunctiva—the thin, transparent tissue covering the white part of the eye and the inner eyelids. Typical symptoms include: Red or pink appearance of the eye Watery or teary eyes Itchiness or irritation A sticky or crusty discharge
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Pneumonia is a lung infection that causes inflammation of the air sacs (alveoli) in one or both lungs. These air sacs can fill with fluid or pus, making breathing difficult and reducing oxygen levels in the body. Pneumonia is most commonly caused by bacteria, but it can also result from viruses or, less commonly, fungi.
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Acute respiratory distress syndrome (ARDS) is a life-threatening lung condition in which the lungs are unable to supply enough oxygen to meet the body’s needs. ARDS can affect individuals of any age and most often develops as a serious complication of another illness or injury. In many cases, individuals are already hospitalized when symptoms appear,
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Ischemic wounds develop when there is reduced or blocked blood flow to tissues, a condition known as arterial insufficiency. Because oxygen and essential nutrients cannot adequately reach the affected area, the skin and underlying tissues are unable to heal properly. These wounds most commonly affect the lower extremities, particularly: Heels Shins Tops or sides of
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Wound dehiscence is a serious surgical complication in which a previously closed incision reopens along the suture line instead of healing as intended. Under normal circumstances, sutures or staples hold wound edges together long enough for new tissue to form. When dehiscence occurs, the wound margins separate, delaying healing and increasing the risk of infection
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Spondylosis refers to age-related, wear-and-tear changes affecting the spine. Many Canadians develop some degree of spondylosis as they grow older, and in most cases, it does not cause symptoms. When symptoms do occur, they are typically mild and may include intermittent pain, stiffness, or reduced flexibility. Spondylosis can affect any region of the spine, including
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