Two conditions cause COPD: chronic bronchitis and emphysema. Both affect your lungs in different ways. Asthma is not considered a type of COPD ... be a chest X-ray or a CT scan.

Diagnosis of emphysema is made with a physical examination, x-rays, blood tests, CT scans, spirometry ... White blood cells are the type of cells that make up an individual's immune system ...

For example, a chest X-ray can help diagnose moderate or severe cases of emphysema, while a CT scan can be beneficial in diagnosing early stages of emphysema since it provides a more detailed image of ...