Breath test offers hope for early detection of lung-bacteria growth in cystic fibrosis
...icians have found that people with cystic fibrosis exhale higher concentrations of sulfur compounds from their lungs than do people who don't have the disease. These sulfur compounds, called sulfides, are known to be produced by bacteria, and lung disease in cystic fibrosis is accompanied by bacterial infe...Little evidence behind bronchodilator therapy for cystic fibrosis
...iratory flow rate represents how fast a person can exhale air. Improvements occurred primarily in a subgroup of the cystic fibrosis patients studied. These patients were known to have bronchial hyper-responsiveness -- increased response of the airway to certain stimuli. Bronchial hyper-responsiveness and re......atients take as deep as a breath as possible, then exhale as forcefully as possible into the mouthpiece of the PEF meter for three tests. As a gauge for pulmonary function, it is especially useful in patients older than age five who have persistent moderate to severe asthma.) "None of the exacerbations we ...