Why do antihistaminic drugs require repeated administration multiple times a day?
A. These drugs are rapidly metabolized by the liver.
B. These drugs are nontoxic at smaller doses and at a higher frequency.
C. These drugs are eliminated very quickly through renal excretion.
D. These drugs are not absorbed very well from the intestines.
Answer: A
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A patient admitted to the intensive care unit has been taking high levels of magnesium supplements. The nurse would add which information to this patient's plan of care?
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