Diagnosing Asthma

To diagnose asthma, physicians rely on a combination of medical history, physical exams, and laboratory tests.

These tests may include:


a simple test to measure lung function that involves a patient exhaling into a device called a spirometer

Peak Flow Monitoring

measures the fastest speed at which a person can blow air out of the lungs

Inhalation Challenge

measures the response of your airways to substances that may be causing asthma

Exercise Stress Test

determines the effect of exercise on lung function