A nurse is reviewing the phases of pharmacokinetics. Which of the following phases is the change of a drug into a less or more potent or more soluble form after it passes through the liver?
Excretion
Absorption
Distribution
Metabolism
The Correct Answer is D
A. Excretion is the removal of the drug from the body, typically through the kidneys, and is not related to changes in the drug's potency or solubility.
B. Absorption is the process of the drug entering the bloodstream, not a process that alters the drug's chemical form.
C. Distribution is the process by which the drug is spread throughout the body’s tissues and organs, not
the phase where the drug is altered.
D. Metabolism, primarily occurring in the liver, involves the conversion of drugs into more water-soluble forms, which can either increase or decrease their potency.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. This describes an antagonist, not an agonist.
B. Agonists are medications that bind to receptors and mimic the actions of naturally occurring substances in the body.
C. This is incorrect because agonists generally have a high affinity for their receptors and activate them.
D. This is incorrect, as option B accurately describes an agonist.
Correct Answer is D
Explanation
A. Controlled substances do not have the potential for abuse: This is incorrect, as controlled substances have varying degrees of abuse potential.
B. Controlled substances do not have the potential for dependence: This is incorrect, as many controlled substances have the potential for dependence.
C. Controlled substances do not have the potential for misuse: Controlled substances often have misuse potential, which is why they are regulated.
D. Controlled substances have a Schedule classification: This is correct. Controlled substances are classified into schedules based on their potential for abuse and dependence.
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