COPD :
COPD is also called chronic obstructive pulmonary disease. COPD is a long-term progressive disease affecting the lungs and damages the airways by blocking them. The two most common types of COPD are chronic bronchitis and emphysema. The symptoms of COPD are wheezing, continuous cough with mucus, tightness in the chest, frequent lung infections, fatigue, unexplained loss of weight, and swelling of ankles, feet, and legs. The primary cause of COPD is smoking tobacco and exposure to fumes, dust, and polluted air. The diagnostic tests involved in COPD diagnosis are pulmonary function tests such as lung volume test, spirometry, pulse oximetry, lung diffusion test, and exercise stress test, CT scan, chest X-ray and laboratory tests such as blood tests, arterial blood gas analysis, and test for AAT deficiency. The treatment options for COPD is to quit smoking tobacco and medications to control the symptoms, inhaled steroids to reduce inflammation in the airways, oral steroids, oxygen therapy, and a pulmonary rehabilitation program.