Exclusion criteria
acute pulmonary embolism, ILD, acute respiratory failure
HYPERSENSITIVITY PNEUMONITIS, INTERSTITIAL LUNG DISEASES, BLEEDING TENDENCY, ACUTE RESPIRATORY FAILURE, ACUTE PULMONARY EMBOLISM
Those with other interstitial lung diseases (ILD) than HP and patients with moderate or low confidence HP diagnosis as well as patients who refused to participate or had acute respiratory failure or bleeding tendency.Out of 55 patients with hypersensitivity pneumonitis, 15 were excluded (1 refused to participate, four had acute respiratory failure and 2 had an acute pulmonary embolism and were on anticoagulation, eight had moderate or low confidence HP) (Fig. Flow diagram for the eligible and excluded patients.