Which of the following is (are) potential applications of ...

[SAVANNAHHOOPER23]

Which of the following is (are) potential applications of electromyography? 1. Monitoring activation of the muscles of the upper airway 2. Monitoring contractile strength of the heart 3. Monitoring activity of intercostal muscles 4. Monitoring peripheral
 
  a. 1 only c. 1 and 3
  b. 1 and 2 d. 2, 3, and 4

Question 2

During polysomnography, the patient has 15 periods of apnea and 10 episodes of hypopnea dur-ing 6 hours of sleep. What is their apnea hypopnea index?
 
  a. 2.5 c. 4.2
  b. 3.5 d. 5.6

[ally]

Answer to Question 1

ANS: C
The electromyogram can be used to monitor activation of the muscles that expand the upper air-way and to monitor the intercostal muscles as an alternative to assess respiratory activity.

Answer to Question 2

ANS: C
The apnea hypopnea index is calculated by taking the sum of the total number of apneas and the number of episodes of hypopnea. The total is then divided by the number of hours of sleep.