Histamine Challenge Test

A Histamine Challenge Test assesses how reactive your airways are to histamine, a chemical involved in allergy responses. During the test, small and gradually increasing doses of histamine are inhaled under medical supervision. If your airways narrow easily, it indicates airway hyperreactivity, often seen in asthma. The test helps diagnose asthma or evaluate its severity. It’s performed in a controlled environment to ensure safety, with monitoring of breathing function throughout. This helps doctors understand your airway sensitivity and develop appropriate treatment plans.