When to Get a Lung Function Test before a Polysomnography (PSG) Test
Written by Aisha, Reviewed by Dr. Manvir Bhatia, 1/12/2025 Sleep studies, such as Polysomnography (PSG), are essential for diagnosing sleep disorders such as sleep apnea and periodic limb movement disorder. However, for some patients, it’s equally important to assess lung function before undergoing a PSG test. Understanding when and why a lung function test (spirometry…