Finish this formula: Cardiac output = Volume of blood ejected at each heart beat × ____
1. Stroke volume
2. Preload
3. Afterload
4. Heart rate
Correct Answer: 4
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Randomization strengthens an experimental study in which of these ways?
a. It reduces the risk that a subject will be harmed by participation in the study. b. It ensures that the experimental group and the control group have the same number of participants. c. It allows the study to proceed without the researcher knowing which group is the experimental treatment group. d. It increases the likelihood that the differences in outcomes between the groups are not related to chance alone.
Which assessment finding in a patient with a fractured femur would lead the nurse to suspect a fat embolism?
A) Dyspnea and tachypnea B) Unrelieved pain in the fractured leg C) Volkmann contracture D) Edema of the affected leg
Identify the statement made by a psychiatric clinical nurse specialist to a client with anorexia nervosa that best demonstrates the use of cognitive therapy
a. "You seem to feel much better about yourself when you eat something." b. "Being thin doesn't seem to solve your problems, since you're thin now and still unhappy." c. "It must be difficult to talk about private matters with someone you just met." d. "What are your feelings about not eating the food that you prepare?"
An area of concern due to a gap in knowledge that requires a solution that can be described, explained, or predicted to improve practice is a
a. research problem. b. purpose statement. c. null hypothesis. d. research hypothesis.