Chest Tightness can arise from 3 documented medical conditions. Understanding the clinical context helps identify urgent causes early.
Angina Pectoris
Angina pectoris is chest pain or discomfort caused by reduced blood flow to the heart muscle, usually due to coronary artery disease. Stable angina occurs predictably with exertion; unstable angina occurs at rest and is a medical emergency.
COPD (Chronic Obstructive Pulmonary Disease)
COPD is a progressive lung disease causing persistent airflow limitation, primarily from emphysema and chronic bronchitis. Smoking is responsible for 85% of cases; symptoms include chronic cough, sputum production, and exertional dyspnea.
Hypersensitivity Pneumonitis
Hypersensitivity pneumonitis (extrinsic allergic alveolitis) is an inflammatory lung disease caused by repeated inhalation of organic antigens. Farmer's lung and bird fancier's lung are classic examples; antigen avoidance is the most important intervention.
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