Name the biggest cause of unnecessary radiation overexposure
having the kVp set too high
taking radiographs just because "the patient is due"
taking a full-mouth series every 3 years
using slow-speed film
taking radiographs just because "the patient is due"
Rationale: taking radiographs just because "the patient is due"
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What is a theory to explain the cause of diabetes?
a. The breakdown of glycogen to glucose is inefficient in some people. b. Certain hereditary disorders may cause a deficiency in glucose receptors. c. Enzymes found in the liver may metabolize too much insulin, leading to insulin deficiency. d. A mumps-related virus may damage cells of the pancreas.
While some patient advocacy groups are lobbying lawmakers to write laws that will limit physician hours, legislatures are hopeful that:
a. professional organizations will self-regulate and not require legislative intervention. peful that: b. licensing boards will establish criteria when issuing licenses. c. the courts will incorporate negligence standards. d. the public will opt not to go to institutions that do not incorporate hour limitation policies.
A bundle branch block has which of the following characteristics?
A. It accelerates depolarization of the ventricle it supplies. B. It causes narrowed QRS complexes to appear on the ECG. C. It causes a prolonged PR interval. D. It occurs when the bundle branches fail to conduct impulses.
Two indications for bilevel PAP are acute respiratory failure and ____.
A. apnea B. acute hypercapnic exacerbations of COPD C. progressive hypoventilation D. facial trauma