[Indications for the inhalation provocation test].

For proper performance of BPT certain medicaments must be set off. Kind and duration of inhalation, the time-frequency relation and the dosage of allergens are necessary parameters in evaluation of BPT-results. The BPT is necessary when the history is characteristic without positive skin reaction, when the skin reaction is positive without characteristic history and when several positive skin reactions have been obtained and cannot be excluded as specific for the complaints from the patient history. BPT is the main test in allergic airway diseases to prove an actual clinical allergy together with history and skin tests. RAST correlates differently with BPT with different allergens and does not help much in the house dust group--and mould allergies.