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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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Shavonne96 Shavonne96
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6 years ago
Which finding would confirm a diagnosis of cystic fibrosis?
 
  a. A chest radiograph shows alveolar hyperinflation.
  b. Stool analysis indicates significant amounts of fecal fat.
  c. Sweat chloride is greater than 60 mEq/L.
  d. Liver function levels are abnormal.
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#1
6 years ago
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The diagnosis of cystic fibrosis requires a positive sweat test. A chloride level greater than 60 mEq/L is considered diagnostic for cystic fibrosis. Hyperinflation is one of the first findings on a chest radiograph of a child with cystic fibrosis. It does not confirm a diagnosis. A 72-hour fecal fat determination may be included in a diagnostic workup. Inability to secrete digestive enzymes causes steatorrhea. Liver function tests may be part of the diagnostic workup for cystic fibrosis.
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