iPFTs are measured while your child is under conscious sedation. Conscious sedation helps your child sleep through the test.
Your child will be monitored throughout the procedure and will be breathing on his or her own while sedated.
The iPFT system is a large clear plexiglass bed. Your child, once asleep, will be placed in the bed. A clean mask will be fitted over your child's nose and mouth that is connected to the iPFT system. (Remember your child will be breathing comfortably on his or her own.)
A vest will also be placed around your child's chest and stomach. Your child's breathing will be measured and monitored on a computer. During one of the tests, the vest will inflate, giving your child a "hug" to allow him or her to empty the lungs more than in a "normal" breath.
A medication called a bronchodilator may be given at the doctor's request and tests repeated while your child is still asleep.