Which of the following statements is true of the life span of the U.S. population?
a. Life expectancy was lower in 1960 than it is today.
b. Life expectancy was higher in 1960 than it is today.
c. Life expectancy was the same in 1960 and 2009.
d. Life expectancy was higher in 2009 than it is today.
Answer: a
Feedback: Life expectancy in the United States was lower in 1960 than it is today.
Health Professions
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Pressure limits on the Puritan Bennett PR-2 can be set between _____ cm H2O
a. 0 and 30 c. 0 and 60 b. 0 and 50 d. 10 and 30
Health Professions
The inspiratory phase on a Puritan Bennett PR-2 will end when which of the following occurs?
a. The clutch plate, diaphragm, and ceramic switch are forced left. b. Gravity is sufficient to completely close the Bennett valve. c. The Bennett valve rotates counterclock-wise. d. The set Sensitivity level is reached.
Health Professions