How is atelectasis diagnosed?

To diagnose atelectasis, doctors usually start with X-rays (a test that provides pictures of the inside of your chest). Another test called a computed tomography (CT) scan can provide more detailed pictures.

In more severe cases, a doctor may use a procedure called a bronchoscopy to see inside your airway. In this test, the doctor sends a small tube called a bronchoscope down the throat to look for a blockage or other issue. The test is fairly painless. If a blockage is found, your doctor may be able to remove it during the procedure.

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