- Subjects with a chest x-ray that suggests a diagnosis other than COPD (e.g., diagnostic of pneumonia, other infection, atelectasis, or pneumothorax or other active/ongoing pulmonary conditions) and taken within 6 months prior to study start. If there is no chest x-ray taken within 6 months prior to study start, or if recent results are unavailable for review, a chest x-ray must be performed.