SNIFF TEST

Posted by janoh @janoh, 12 hours ago

I saw a new primary doctor and told her about my chronic cough.
I told her my pulmonologist put me on an inhaler because he said I have COPD and my chest X-ray shown that I have a right hemidiaphragm.
My doctor asked me if I ever had a SNIFF TEST? I had no idea what that is or what it was for??
Anyone have this test done? Why?