What trends have occurred in the teenage pregnancy rate in the United States?
a. It remained consistent from 2004 to 2009.
b. It has continued to rise.
c. It has been fluctuating rather wildly.
d. It has remained high, but rates are decreasing.
ANS: D
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The hemodynamic effects of a pericardial effusion include
a. increased ventricular ejection. c. myocardial ischemia. b. decreased ventricular filling. d. increased afterload.
A medical student is scheduled to undergo a clinical exam of his assessment skills under the supervision of the attending physician
As a result of this stressor, the student has high serum levels of glucocorticoid hormones such as cortisol. Which of the following statements best captures an aspect of the role of glucocorticoid hormones such as cortisol in the physiological response to stress? A) Blood glucose levels are increased in anticipation of energy expenditure. B) The immune system is bolstered in response to an impending threat. C) Osteoblast activity and protein synthesis are suppressed in order to refocus energy. D) Attention, arousal, and respiratory rate are increased in order to prepare for a response.
In qualitative research, saturation indicates which of the following?
A) There are too many subjects B) Themes in the data are repeating C) Too many variables are included in a study D) The quality of the data is excellent
The nurse on a medical-surgical unit is asked to participate in data collection on skin care for the unit. Which is the rationale for cooperating with this request?
A) Participate in the quality improvement process B) Advance the nurse's practice C) Prevent problems from arising in the unit D) Fulfill legal requirements