Bronchitis :
Signs and symptoms include persistent cough, mucus production, wheezing, shortness of breath, chest tightness, fatigue, mild fever etc,. Risk factors for bronchitis includes age (over 40), smoking, weakened immune system, respiratory conditions like COPD, asthma , exposure to pollutants etc., and complications like pneumonia, respiratory failure, chronic bronchitis,emphysema, pulmonary hypertension etc. Diagnosis is by pulmonary function tests, sputum analysis, CT scan (if necessary). Management is by medications like bronchodilators and antibiotics(if it is bacterial infecion), inhalers, oxygen therapy, pulmonary rehabilitation, lifestyle modifications like quitting smoking and avoiding irritants