Which statement is true regarding tachyphylaxis?
A) It is most likely to occur once sensation has returned to normal levels.
B) It is least likely to occur when effective anesthesia was initially achieved.
C) It is well understood as a problem related to inadequate local anesthesia.
D) It is related to the high pH of tissues in the presence of inflammation.
A
Health Professions
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An elderly male patient who is short of breath is on home oxygen. He is wearing a nasal cannula connected to an oxygen tank with the flow regulator set to 3 liters per minute. As a knowledgeable EMT, you should recognize that the patient is getting approximately what percentage of oxygen with each breath?
A) 20% B) 24% C) 32% D) 40%
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Older persons experience changes in sleep patterns.
What will be an ideal response?
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