Reproducibility of histamine inhalation bronchial challenge test.
Broncho-provocation tests with inhaled histamine were performed in 61 asthmatics twice at a gap of 4 weeks. Ten of them also underwent a third test after 16 weeks. More than 80% of the patients had a reproducibility of response within 1 to 2-fold concentration difference. It is concluded that under carefully controlled conditions broncho-provocation tests with histamine are reproducible.
Chhabra
S K
SK
Department of Cardio-Respiratory Physiology, V.P. Chest Institute, University of Delhi.
Gaur
S N
SN
D000293:Adolescent; D000328:Adult; D000336:Aerosols; D000403:Airway Resistance; D001249:Asthma / Q000175:diagnosis; D001985:Bronchial Provocation Tests / Q000379:methods* / Q000706:statistics & numerical data; D002648:Child; D005260:Female; D006632:Histamine; D006801:Humans; D016018:Least-Squares Analysis; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results
D000336:Aerosols; D006632:Histamine