Bicycle injuries follow a developmental pattern that differs from that of most injuries, where toddlers and individuals in young adulthood are most at risk. Children in late childhood and early adolescence appear most at risk for bicycle injuries. The present study of 2nd-grade, 4th-grade, 6th-grade, and undergraduate college students documented that after videotaped simulations of bicycle injury events, younger children anticipated greater injury severity and more fear than older children and adolescents. The potential influence of reduced expectations for injury with increasing age is described, and challenges are advanced for establishing the link between lowered injury expectancies and increased risky behavior.
Because so many children with gastroenteritis in our area were being treated with drugs, which are potentially harmful, we assessed the extent of treatment before admission to hospital of 288 children. Sixty four had been treated: 45 with antibiotic, antidiarrhoeal, or antiemetic drugs and 34 had been given glucose-electrolyte solution, 15 of those had also been given drugs; 119 had had no treatment. Since 1979 there has been a decrease in the use of drugs for gastroenteritis, but glucose-electrolyte mixtures are still underused.
corner of the heater with her face applied closely to the grill. She was immediately immersed under the cold-water tap of a bath, and medical help was sought.
Although the pathogenesis of myxoedema coma is uncertain, precipitating factors such as exposure to cold, infection, administration of central nervous system depressants, alveolar hypoventilation, and hyponatraemia are reported to predispose to its development.' Myxoedema coma induced by administration of beta-adrenoreceptorblocking agents has not, however, been reported. We describe a patient with myxoedema coma induced by a beta-blocker who recovered consciousness after withdrawal of the drug.
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