Learners can acquire a new pattern of relative motions when a demonstration contains:
A. Information about relative motion or the end point of a segment
B. Information about the end point of a segment
C. Information about relative motion
D. No information at all
Answer: A
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Which of the following dysrhythmias is more commonly seen with an anterior wall myocardial infarction?
a. Second-degree AV block type II b. Third-degree AV block with a narrow QRS c. Second-degree AV block type I d. AV nodal reentrant tachycardia
Which of the following statements best describes the appropriate choice of needles for local anesthetic injections?
A) Use higher-gauge needles for injection techniques that require deep penetrations because the flexibility will allow for repositioning around soft tissue obstructions. B) Use smaller gauge needles for injections that require deep penetrations because they are less flexible and the larger lumen provides for ease and accuracy of aspiration. C) Use smaller gauge needles because they will cause less discomfort during injection compared to larger gauge needles. D) All needles will work equally well for all injection techniques.