Asthma Exams and Tests
There are several asthma tests your doctor may use to make an asthma diagnosis such as lung (or pulmonary) function tests (spirometer, or peak flow meter) which measure lung function. Other asthma tests determine if you are allergic to specific foods, pollen, or other particles. Blood tests give a picture of your overall health; specific tests also measure levels of immunoglobulin E (IgE), a key antibody that's released during an allergic reaction.
Your doctor may perform an X-ray exam of you in order to visualize the structures inside your chest, including the heart, lungs, and bones. By viewing your lungs, your doctor can see if asthma is causing your symptoms. While a chest X-ray is not an asthma test, it may also be used to make sure nothing else is causing your asthma symptoms.
All of these asthma tests help your doctor determine if asthma is indeed present and if there are other coexisting conditions with asthma, such as allergies, GERD, or sinusitis. Once a proper asthma diagnosis is made, specific medications can be prescribed to help manage your asthma and prevent asthma attacks.