The sweat chloride test is the gold standard test for the diagnosis of<unk>  fibrosis. A sweat chloride value of more than 59 mmol/L is<unk>  for<unk>  fibrosis, 30-59 mmol/L needs more evaluation with CFTR genetic analysis and less than 30 indicates that<unk>  fibrosis is unlikely.
Cystic fibrosis diagnostic study of choice
Cystic fibrosis other diagnostic studies
Primary ciliary dyskinesia diagnostic study of choice
Cystic fibrosis echocardiography or ultrasound
Cystic fibrosis differential diagnosis
Respiratory failure diagnostic study of choice
Cyanosis diagnostic study of choice
Methemoglobinemia diagnostic study of choice