increased phase III

http://www.capnography.com/Clinicalapplication/Images/bronch.gif   http://www.capnography.com/Clinicalapplication/Images/nromalbroncho.gif
 
Bronchospasm

The slope of the phase III is increased and phase II is prolonged.  After the treatment, there is normalization of the capnogram. A similar picture results in children when a side stream analyzer with a longer response time is used.