As sound travels through an absorbing medium

1. its amplitude decreases
2. it gains velocity and power
3. its power decreases
4. its direction is altered
5. it loses intensity

a. 1, 2, and 5 only
b. 2, 4, and 5 only
c. 1, 3, and 5 only
d. 2 and 4 only

c. 1, 3, and 5 only

Health Professions

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Which item is not considered sterile?

A) Cap B) Mask C) Any part of the gown D) Both a and b

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Which of the following simple artificial airways is often used to facilitate repeated nasotracheal suctioning?

A) oropharyngeal airway B) nasopharyngeal airway C) Combitube airway D) laryngeal mask airway

Health Professions