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It results from the absence of ganglion cells in the

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Unformatted text preview: ated with lead, lead solder user in plumbing, vinyl blinds, and improperly glazed pottery can be the source of toxic exposure in lead poisoning. 21 306. Hirschsprung's Disease Hirschsprung¶s disease also is known as congenital aganglionosis or megacolon. It results from the absence of ganglion cells in the rectum and, to various degrees, up into the colon. Option 1 describes celiac disease. Option 2 describes lactose intolerance. Option 4 describes irritable bowel syndrome. 307. Hepatitis Because hepatitis A virus is not infectious 1 week after the onset of jaundice, return to school at that time is permitted if the child feels well enough. Options 1, 2, and 4 are incorrect. 308. Cleft Palate Cleft palate repair is individualized and based on the degree of deformity and size of the child. Cleft palate repair usually is performed between 6 months and 2 years of age, depending on physician preference. Early closure facilitates speech development. Options 2, 3, and 4 are incorrect. 309. Tetralogy...
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