Normal sweat chloride test does not rule out cystic fibrosis

A 5-month-old patient presented with complaints of fever and cough. He was hospitalized with the diagnosis of bronchopneumonia and pseudo-Bartter's syndrome. Patient was further investigated for diagnosis of cystic fibrosis. The chloride (Cl) level in sweat was determined within the normal ran...

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Bibliographic Details
Main Authors: Abdurrahman Erdem Başaran, Nimet Karataş-Torun, İbrahim Cemal Maslak, Ayşen Bingöl, Özgül M Alper
Format: Article
Language:English
Published: Hacettepe University Institute of Child Health 2017-02-01
Series:The Turkish Journal of Pediatrics
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Online Access:https://turkjpediatr.org/article/view/950
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Summary:A 5-month-old patient presented with complaints of fever and cough. He was hospitalized with the diagnosis of bronchopneumonia and pseudo-Bartter's syndrome. Patient was further investigated for diagnosis of cystic fibrosis. The chloride (Cl) level in sweat was determined within the normal range (25.1 mmol/L, 20.3 mmol/L). CFTR (Cystic Fibrosis Transmembrane Regulator gene; NM_000492.2) genotyping results were positive for p.E92K; p.F1052V mutations. The patient was diagnosed with cystic fibrosis. In our patient, with features of CF and normal sweat test, mutation analysis was helpful for the diagnosis of cystic fibrosis.
ISSN:0041-4301
2791-6421