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Friday, August 24, 2007,8/24/2007
BronchitisFrom Wikipedia>>>
Bronchitis is
inflammation of the
bronchi (medium-size airways) in the
lungs. Acute bronchitis is usually caused by
viruses or
bacteria and may last several days or weeks. Chronic bronchitis is not necessarily caused by infection and is generally part of a syndrome called
COPD (chronic obstructive pulmonary disease); it is defined clinically as a persistent
cough that produces
sputum (phlegm), for at least three months in two consecutive years. The remainder of this article deals with acute bronchitis only.
Acute bronchitis is characterized by
cough and
sputum (phlegm) production and symptoms related to the obstruction of the airways by the inflamed airways and the phlegm, such as shortness of breath and wheezing. Diagnosis is by clinical examination and sometimes
microbiological examination of the phlegm. Treatment may be with
antibiotics (if a bacterial infection is suspected),
bronchodilators (to relieve breathlessness) and other treatments.
Signs and symptomsBronchitis may be indicated by an
expectorating cough,shortness of breath (
dyspnea) and wheezing and occasionally
chest pains,
fever, and
fatigue or
malaise. Sputum characteristics do not correspond with a particular etiology (ie, viral vs bacterial)
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