آسم – Asthma

آسم – Asthma

اسلاید 1: Asthmaنام و نام خانوادگیIN THE NAME OF GOD

اسلاید 2: TABLEDefinitionPathogenesisPhysiologyPhysical FindingsEvaluationRisk factors for asthmaManagement and Treatment

اسلاید 3: DEFINITION

اسلاید 4: While asthma is readily recognized in its classic presentation, with intermittent cough, wheeze, and shortness of breath brought on by characteristic triggers and relieved by bronchodilating medications, it is difficult to provide a definition that distinguishes asthma from similar and overlapping conditions. In the absence of a definitive laboratory test or biomarker, asthma has defied precise definition, one acceptable to all disciplines (including clinicians, physiologists, and pathologists). Clinically, its symptoms are non-specific. Physiologically, asthma is characterized by bronchial hyperresponsiveness, the tendency of airways to narrow excessively in response to a variety of stimuli that provoke little or no bronchoconstriction in persons without airway disease, but bronchial hyperresponsiveness is not unique to asthma. Pathologically, asthma may be described broadly as a chronic inflammatory disorder of the airways .However, this description omits the characteristic waxing and waning of air flow obstruction in asthma and fails to distinguish asthma from other inflammatory airways disorders, such as chronic bronchitis or bronchiolitis.