NR565 / NR 565 Midterm Exam Study
Guide (Latest 2025 UPDATED):
Advanced Pharmacology
Fundamentals - Chamberlain2026
Questions and Answers (100% Correct
Answers) Already Graded A+
© 2026 Assignment
APRN prescribing role Ans: Prescriptive authority for
nurse practitioners also regulates prescribing rights
beyond medications and controlled substances. These
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rights include therapeutic devices and services and are
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outlined in state practice laws and regulations and include
Durable Medical Equipment (DME) such as wheelchairs,
power scooters, hospital beds, portable oxygen
equipment, handicap placards, etc. and medical services
such as Physical Therapy (PT), Occupational Therapy (OT),
home health services, etc. Prescriptive authority
encompasses more than writing a prescription correctly. It
requires adherence to ethical guidelines to ensure that
patients are safeguarded from harm. Ethical prescribing
starts with being well-informed about medications.
Mechanism of action, efficacy, and safety are important
considerations, as are a patient's distinct needs and
circumstances, including the number of medications
prescribed (Mitchell & Oliphant, 2016). Most patients
receiving a prescription are taking other medications,
whether prescription or over-the-counter. Appropriate
selection, dosing, and duration of pharmaceutical agents
are key to maximizing outcomes and minimizing adverse
effects
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benefits of full practice authority Ans: Nurse practitioners
have the autonomy to evaluate patients, diagnose, order
and interpret tests, initiate and manage treatments and
prescribe medications, including controlled substances
without physician oversight
promoting positive outcomes through prudent prescribing
practices Ans: Administering medications and prescribing
medications are two distinct processes. Prescription
writing requires prudent and deliberate decision-making
© 2026 Assignment
processes to maintain patient safety and reduce liability,
including:
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*documentation of a provider-patient relationship for the
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recipient of the prescribed medications
*documentation of a thorough history and physical
examination for the recipient
*documentation of discussions regarding risk factors, side
effects, or therapy options
*documentation of drug monitoring or titration plan, if
applicable
*documentation of consultations, if any
avoidance of prescribing medications for self, family, or
friends
Rational drug selection requires a logical approach that
includes the formulation of a diagnosis based on clinical
reasoning and the selection and monitoring of the most
appropriate pharmacological treatment
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Considerations include: Cost, guidelines, availability,
interactions, side effects, allergies, hepatic/renal
functions, need for monitoring, & special populations
Beer's Criteria Ans: identifies drugs with a high likelihood
of causing adverse effects in older adults. Accordingly,
drugs on this list should generally be avoided in adults
older than 65 years except when the benefits are
significantly greater than the risks.
© 2026 Assignment
Pharmacodynamics Ans: the study of the biochemical and
physiologic effects of drugs on the body and the
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molecular mechanisms by which those effects are
produced
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Pharmacokinetics Ans: the study of drug movement
throughout the body
Pharmacogenomics Ans: the study of how genes affect a
person's response to drugs. The purpose of this is to
combine the sciences of genomics and pharmacology to
provide individualized, targeted, safe drug therapies to
patients
CYP450 inducers Ans: Inducers are xenobiotics
(medications and environmental agents) that elevate
CYP450 enzyme activity by increasing enzyme synthesis.
This action leads to additional sites available for
biotransformation. The increased number of sites
enhances medication metabolism, decreasing the
concentration of the "parent drug" while increasing
metabolite production.
Inducers = Increase medication metabolism
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(Carbamazepine, Rifampin, Alcohol, Phenytoin,
Griseofulvin, Phenobarbital, Sulfonylureas)
CYP450 inhibitors Ans: Inhibitors are medications that
inhibit the metabolic activity of one or more of the CYP450
enzymes. Medications that inhibit an enzyme potentially
slows that enzyme's activity or blocks the activity required
for the metabolism of other medications, thereby
increasing the levels of medications dependent on that
particular enzyme for biotransformation. Inhibitors =
© 2026 Assignment
decrease medication metabolism (Valproate, Isoniazid,
Sulfonamides, Amiodarone, Chloramphenicol,
Ketoconazole, Grapefruit Juice, Quinidine)
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cultural influences in prescribing Ans: The greatest
concern surrounding race-based therapy has to do with
genetic variability. We know there is great diversity within
and among racial groups; therefore, a "one fits all"
approach based on race is unwise. Still, we can use known
associations to guide choices. For example, differences in
metabolism between people with East Asian and European
heritage are common. The provider can use this
knowledge to guide initial dosing (with adjustment, as
indicated based on response) if genetic testing is not
feasible or warranted
Polypharmacy: Definition, challenges, and outcomes Ans:
treatment with multiple drugs
greatly increases the risk for interactions. Some of these
interactions are negligible, but some can have life-
threatening consequences. It is of crucial importance to
ask the patient about all current drugs, including over-the-
counter (OTC) medications and other herbal preparations.
Many patients do not consider OTC or alternative