Criteria for Occupational Asthma

Does the patient have signs and symptoms of asthma while at work?

Did the patient have a history of asthma prior to current employment?

Has there been a reactivation or worsening in asthmatic symptoms associated with the job?

FEV1 before going to work

FEV1 during or immediately after going to work

Do symptoms get worse when the patient is at work?

Do symptoms improve when the patient is not at work (off shift, weekends, on vacation, out of town)?

Does the patient have an exposure at work to an agent known to cause asthma?

Does removal of the patient from the source of exposure result in remission of asthmatic symptoms?