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
Q. 2 Standard polysomnography includes which of the following? 1. Esophageal pH 2. Submental electromyogram 3. Electrooculogram 4. Intrapleural pressure
a. 1 and 2 c. 2, 3, and 4
b. 2 and 3 d. 1, 2, 3, and 4
Q. 3 Which of the following constitute the effects of normal sleep on the cardiovascular system?
1. Tachycardia during slow-wave sleep
2. Vasoconstriction during slow-wave sleep
3. Hypotension with significant phasic elevations during REM sleep
4. Slightly decreased cardiac output during non-REM and REM sleep
a. 1 and 2 c. 1 and 4
b. 2 and 3 d. 3 and 4
Q. 4 The submental electromyogram electrodes are placed in which of the following positions?
1. One on the center of the chin
2. Two along the jawline, 3 cm apart
3. Two on the hyoid bone lateral to each other and 2 cm apart
4. One on either side of the chin, between the chin and hyoid bone, 2 cm apart
a. 1 and 2 c. 2 and 3
b. 1 and 4 d. 3 and 4
Q. 5 Which statements are true concerning non-REM sleep?
1. Early stages predispose a person to apneic periods.
2. PaO2 levels decrease by 5 to 10 mm Hg.
3. Minute ventilation increases by 1 to 2 L/min during stages 3 and 4.
4. The amount of time spent in these stages is less than 50 of the total sleep time.
a. 1 and 2 c. 1 and 4
b. 3 and 4 d. 2 and 4
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