A nurse reads in a drug information guide that PO morphine has a high first-pass effect. Which of the following would the nurse expect?
The drug will be most effective when given orally.
The drug will be more effective when given in a non-enteral route.
The drug is excreted by the kidneys at a slower rate than most medications.
The kidney will metabolize some of the drug before it reaches the bloodstream.
The Correct Answer is B
A. A high first-pass effect means that a significant amount of the drug is metabolized by the liver before reaching systemic circulation, making oral administration less effective.
B. Morphine with a high first-pass effect will be more effective when administered via non-enteral routes, such as IV or subcutaneous, to bypass the liver's initial metabolism.
C. The first-pass effect does not influence the kidney’s rate of excretion but rather the liver’s initial metabolism of the drug.
D. The liver, not the kidneys, is responsible for the first-pass metabolism, which occurs before the drug reaches systemic circulation when taken orally.
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Explanation
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Explanation
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