Classic theories offer an explanation of not only the relationship between variables, but also of the nature of the relationship
A) True
B) False
A
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A female patient is scheduled for an ultrasound to examine the uterus. How should the nurse instruct the patient to prepare for the test?
1. Take a laxative the night before the test to clear the colon of feces. 2. Restrict fluids prior to the day of the test. 3. Take no food or fluids after midnight the day before the test. 4. Increase fluid intake and do not void until after the test.
Which of the following terms is used to describe the movement of oxygen from an area of high concentration to an area of low concentration?
a. Osmosis b. Active transport c. Diffusion d. Passive transport e. Filtration
Two structures within the inner ear—the semicircular canals and the vestibule—work together to help the person:
a. hear low-pitched sounds. b. hear high-pitched sounds. c. maintain equilibrium. d. transfer sound to the cochlea.
A nurse is administering a vasodilator that dilates resistance vessels. The nurse understands that this drug will have which effect on the patient?
a. Decreased cardiac preload b. Decreased cardiac output c. Increased tissue perfusion d. Increased ventricular contraction