Reactive Airway Disease

Criteria

• • Absence of previous documented respiratory symptom.
• • Onset of symptoms most often occur after a single specific exposure.
• • Exposure is most often to a high concentration of gas, smoke, fume, or vapor with irritant qualities.
• • Symptoms occur within 24 hr of exposure and persist for 3 mo or longer.
• • Symptoms mimic asthma with cough, wheezing, shortness of breath, and/or dyspnea.
• • Pulmonary function tests may demonstrate airflow obstruction but not always.
• • Bronchial hyperresponsiveness is documented by methacholine challenge.
• • Alternative pulmonary diseases are not able to be found.