Allergist/immunologists perform methacholine challenges, which have a high sensitivity for current asthma.1, 2
Diagnostic
Further objective evaluation and confirmation with pulmonary function testing (including exercise challenge) in conjunction with appropriate allergist/immunologist evaluation will define diagnosis or differential diagnosis.3
Diagnostic
There is a theoretical risk of increased barotrauma as well as exercise-induced bronchospasm in patients with asthma who scuba dive. Bronchoprovocation with exercise has been recommended to exclude asthma in scuba divers.4
Diagnostic
Indirect outcome (scuba diving avoidance)