Most apnea monitors operate using the principle of:
I. body plethysmography
II. impedance plethysmography
III. inductive plethysmography
IV. capnometry

Question

Quizplus · Accepted Answer

Impedance plethysmography and inductive plethysmography are the most commonly used principles in apnea monitors. Impedance plethysmography measures changes in the electrical conductivity of the chest and abdomen, while inductive plethysmography measures changes in the magnetic field caused by chest wall movements. Body plethysmography and capnometry are not commonly used in apnea monitoring.

Most Apnea Monitors Operate Using the Principle Of