Explain how local anesthetics work
What will be an ideal response?
Local anesthetic drugs all work similarly. Local anesthetic molecules have a greater affinity for protein receptor sites within the nerve membrane compared to Ca+2 ions and subsequently displace them. Different local anesthetic drugs have varying affinities for these receptor sites, which account for clinically significant differences in drug action.
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Which BEST describes the temperature scale of Kelvin?
A) The measurement of heat energy B) A measurement of temperature used most commonly in the United States where 32 degrees is the freezing point of water C) A scale using absolute zero, where water freezes at 273.15 degrees and boils at 373.13 degrees D) A temperature measurement scale where all molecular movement ceases at zero degrees and water freezes at 491.67 degrees
Based on research and published guidelines, attempting to resuscitate the patient in cardiac arrest may be _____________in certain instances
a. futile and wasting time b. dangerous or a waste of resources c. safe and suitable d. withheld or terminated