To diagnose hypersensitivity pneumonitis, your doctor will collect your medical history to understand your symptoms and see if you have an exposure history to possible causative substances. Your doctor will perform a physical exam and may order diagnostic tests and procedures. Based on this information, your doctor may able to determine whether you have acute, subacute, or chronic hypersensitivity pneumonitis.
To diagnose hypersensitivity pneumonitis, your doctor may order:
Learn how these diagnostic tests and procedures can help distinguish between types of hypersensitivity pneumonitis.
Chest x-ray and CT scans, lung biopsies, and lung function tests may help your doctor diagnose the type of hypersensitivity pneumonitis that you have.
Your medical and exposure histories can help your doctor diagnose acute hypersensitivity pneumonitis and possibly identify the substance causing your condition. This is because the exposure will have occurred right before your acute symptoms started.
It can take months or even years for your doctor to diagnose hypersensitivity pneumonitis in you or your child. Learn why hypersensitivity pneumonitis can be hard to diagnose.