How many time constants are required to empty 95% of the tidal volume?
A) 0
B) 1
C) 3
D) 5
C
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Which of the following patients would be considered to be at the greatest risk for suicide?
A) Married, 30-year-old man who has just learned that his employer is transferring him to a different state B) 35-year-old female who has a child with a serious illness C) 22-year-old man who has lost his job and is getting divorced D) 44-year-old woman who has just recovered from a serious illness
Which of the following statements regarding caries depth is correct?
a. Incipient caries penetrates less than halfway through the enamel. b. Moderate caries penetrates through the enamel and the DEJ. c. Advanced caries penetrates all the way through the enamel, the dentin , and to the pulp. d. Severe caries penetrates more than halfway through the enamel but not the DEJ.