The primary care NP should understand that a drug is at a therapeutic level when it is:
a. at peak plasma level.
b. past 4 or 5 half-lives.
c. at its steady plasma state.
d. between minimal effective concentration and toxic levels.
D
The therapeutic range of a drug is the area between the minimal effective concentration and the toxic concentration. Peak plasma level is the highest level the drug reaches and may be well into the toxic range. Steady state occurs when there is a stable concentration of the drug and generally occurs after 4 or 5 half-lives.
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A nursing student asks the registered nurse why babies get dehydrated so easily. What response by the nurse is most accurate?
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A nurse working in the 1970s would have applied genetic concepts by:
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1. "I will avoid drinking grapefruit juice while I am taking this medication." 2. "I know that I will probably experience nausea with this medication." 3. "I'll take these medications with me while I am away on vacation." 4. "I will call the clinic if I have excessive bleeding."