Angina
Angina is commonly referred to as chest pain in layman terms and referred to as the sharp and shooting pain that is severe in intensity and develop when the blood supply to the heart muscles is altered as a result of ischemia. The pain is usually felt to the left of sternum or in epigastrium and radiates to neck, arms, and back (especially concentrated at the scapular region). It may persist up to 5-15 min. The patients should be taken immediately to the hospital as it is usually a warning sign of impending heart attack. It is usually relieved by rest, nitroglycerin and oxygen administration.