91-100 of 663 Results Found
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Common Cold in Children What is the common cold in children? The common cold (upper respiratory infection) is one of the most common illnesses in children. Each year it leads to more doctor visits and missed days from school and work than any other illness. Millions of people in
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Anatomy and Function of the Heart Valves What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood
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Urinary Tract Infection (UTI) in Children What is a urinary tract infection (UTI) in children? A urinary tract infection is inflammation of part of the system that takes urine out of the body. It’s caused by bacteria. The urinary tract includes the 2 kidneys. They remove liquid
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Vesicoureteral Reflux (VUR) in Children What is vesicoureteral reflux in children? Vesicoureteral reflux (VUR) is a condition in which urine in the bladder flows in the wrong direction. It goes up into the tubes (ureters) that lead to the kidneys. It often flows all the way back
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Fire Safety and Burns Overview A burn injury usually results from an energy transfer from a heat source to the body. There are many types of burns, including: Thermal burns. These burns are caused by heat sources that raise the temperature of the skin and tissues and cause tissue
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Adjustment Disorders in Children What is an adjustment disorder in children? An adjustment disorder is an unhealthy emotional or behavioral reaction to a stressful event or change in a person’s life. The response happens within 3 months of the stressful event. Some events that
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Your Child's Allergies: Dust Mites What is a dust mite? Dust mites are microscopic organisms that live in homes and schools. They like warm, humid areas filled with dust. Dust mites feed on the shed scales of human skin that work their way into furniture, carpets, bedding, and
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Allergic Rhinitis in Children What is allergic rhinitis in children? Rhinitis is a reaction that happens in the eyes, nose, and throat. It occurs when allergens in the air set off the release of histamine and other chemicals in the body. Normally, allergens are harmless. But when
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Type 2 Diabetes in Children What is type 2 diabetes in children? Diabetes is a condition in which the body can't make enough insulin. Or can't use insulin normally. Type 2 diabetes is a metabolic disorder. Insulin is a hormone. It helps sugar (glucose) in the blood get into cells
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Fever in Children What is a fever? Most doctors define a fever as a temperature of 100.4°F (38°C) or higher when taken rectally or 100°F (37.8°C) or higher when taken by mouth. You might get slightly different numbers depending on how you take your child's temperature. The body