Quick update...some test results are in, but no go/no go decision on bypass surgery yet.

Ultrasound -  discovered a small module (<0.75mm) on his thyroid.  Not entirely sure what that means yet.

XRays of the lungs  - discovered he has Chronic Obstructive Pulmonary Disease (COPD) and also discovered he has emphysema.  Alice and I are guessing it's a mild case because he doesn't seem to have much difficulty breathing to us.   COPD affects the tubes that carry air in/out of the lungs.   I'll have to look up more on that later.

Cat scan of lungs - scheduled for later today. 

Breathing test - done, but results not back yet.