Monitoring of respiratory effort during polysomnography may be accomplished by using which of the following?
1. Impedance pneumography
2. Pneumotachograph at airway opening
3. Strain gauge belt around the abdomen
4. Respiratory inductance plethysmography
a. 1 and 2 c. 2, 3, and 4
b. 3 and 4 d. 1, 2, 3, and 4
ANS: D
All of the above-listed equipment can be used to assess and measure respiratory effort during polysomnography.
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