What is facial sunburn?Facial sunburn is a skin reaction that occurs when ultraviolet (UV) radiation from the sun damages the outer layers of the skin. Sunburn can range from mild redness and warmth to more painful burns with swelling or blisters. Workplace & Canadian first aid relevanceSunburn can affect outdoor workers, gardeners, beachgoers, and anyone […]
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What are thumb sprains and strains?Thumb sprains involve overstretching or injury to ligaments, while strains affect tendons. Both can occur with gripping, falls, sports, or repetitive workplace tasks. Symptoms may include pain, tenderness, swelling, and difficulty pinching or holding objects. Workplace & Canadian first aid relevanceMany jobs require fine motor control, tool use, or manual
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What are repetitive stress injuries of the thumb?Repetitive stress injuries (RSIs) occur when tissues are irritated by repeated movements or sustained force over time. The thumb is especially vulnerable because it handles gripping, pinching, texting, tool use, and fine motor tasks. Overuse can affect tendons, joints, and ligaments, leading to discomfort or reduced mobility. Canadian
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What are back spasms?Back spasms are sudden, involuntary tightening of muscles in the back, often causing pain and stiffness. They can occur during or after physical activity — including running — and may relate to muscle fatigue, strength imbalances, or previous injury. Canadian workplace & first aid relevanceBack discomfort can affect everyday movement, workplace tasks,
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What is foot drop?Foot drop refers to difficulty lifting the front part of the foot while walking. This can cause the toes to drag during gait and lead to changes in walking patterns. Foot drop results from weakness or impaired function of muscles below the knee, usually related to nerve, spinal, or muscular conditions. Workplace
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What is a valgus knee brace?A valgus knee brace (also called an “unloader brace”) is designed to shift some of the pressure away from the inner (medial) compartment of the knee. This may help reduce discomfort in people with medial osteoarthritis, where gradual wear-and-tear affects the inner portion of the knee joint. Canadian & workplace
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What is an inflamed elbow joint?Elbow inflammation can involve the joint itself or nearby soft tissues such as tendons, ligaments, bursae, and muscles. Common examples include bursitis, tennis elbow, golfer’s elbow, and tendinitis. Inflammation may lead to discomfort, reduced range of motion, and swelling around the joint. Workplace & Canadian first aid relevanceElbow irritation is
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