When reviewing the adult circulation, the nurse understands that which mechanism primarily aids in returning blood to the heart?
A) Pressure gradients
B) Gravitational flow
C) Muscular contractions
D) Heart muscle contraction
C
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A patient with cardiovascular disease wants to know why magnesium supplements are prescribed. What should the nurse respond to this patient? (Select all that apply.)
A) Lowers blood pressure B) Lowers total cholesterol C) Decreases homocysteine levels D) Dilates arteries and facilitates circulation E) Raises high-density lipoprotein cholesterol
A study is examining the effect of a new antilipemic drug, compared with placebo, on lipoprotein levels in postmenopausal women
Which of these actions represents the researcher's attempt at constancy in data collection to control extraneous variables? a. Drawing the serum lipoprotein levels of all subjects at the same time of day b. Having the same phlebotomist draw serum lipoprotein levels of all subjects c. Using the same room for drawing blood for lipoprotein levels of all subjects d. Ensuring that all subjects are postmenopausal women taking lipid-lowering medication
How should the nurse researcher most accurately interpret an odds ratio less than 1.0?
a. This means there is no difference in the odds of an event occurring between the experimental and control groups. b. The event is less likely in the treatment group than in the control group. c. The event is more likely to occur in the treatment group than in the control group. d. Percent increase in risk of the event that is added after considering the percent of risk that would occur anyway.
Match each term with the correct definition of maternal adaptation stages
a. Passive, dependent b. Begins to see self as a mother c. Autonomous, seeking information 27. Taking-in 28. Letting-go 29. Taking-hold