Evaluation of a chronic cough in adults begins with knowing a patient’s history and completing a thorough physical exam. If the patient is a non-smoker and has not been exposed to any known irritants, then a chest radiograph should be performed. An abnormal chest radiograph will show conditions such as bronchiectasis. However, a normal chest radiograph will not show conditions such as post nasal drip, asthma, or LPR.
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