Bronchial Constriction
Definition: Bronchoconstriction is a reversible or functional narrowing of the bronchioles.
Causes Often as a result of asthma allergies, or other irritants. The narrowing may be as a result of smooth muscle constriction or from the secretion and accumulation of mucus. It can also be brought on by exposure to extreme and fast temperature changes esp. from work to cold environment. It can also be induced by exercises. More permanent structural changes may be associated chronic obstructive pulmonary diseases.
Examination Auscultation may reveal wheezes and if mucus is presence crepitations. Peak flow and spirometry measurements may show a reduced lung capacity.