NR 566 / NR566
ADVANCED PHARMACOLOGY FOR CARE OF THE
FAMILY
EXPANDED MIDTERM STUDY GUIDE — PREMIUM
REVIEW EDITION
268 original Questions & Answers • Detailed rationales • Clinical application • Safety alerts • Memory cues
Independent educational resource. This guide is newly authored from pharmacology principles and the publicly visible topic areas of
the supplied Stuvia listing. It does not reproduce or reconstruct locked/premium text, and it is not affiliated with or endorsed by
Chamberlain University. It does not claim to contain actual exam questions or guaranteed exam answers.
Recommended study method
• Answer each question before reading the response.
• For every drug, learn: class → mechanism → indication → major adverse effects → contraindications/interactions →
teaching.
• For vignettes, identify the immediate safety threat before choosing a therapy.
• Review missed questions twice: immediately and again after a delay.
NR 566 Expanded Study Guide • Independent educational resource Page 1
, SECTION I — PHARMACOLOGY FOUNDATIONS & SAFE PRESCRIBING
1. QUESTION What is pharmacokinetics?
Answer: Pharmacokinetics describes what the body does to a drug: absorption, distribution, metabolism, and
excretion (ADME).
Rationale / Exam Note: A useful memory aid is ADME: Absorb → Distribute → Metabolize → Excrete. Pharmacokinetic
changes can alter drug concentration and duration of action.
2. QUESTION What is pharmacodynamics?
Answer: Pharmacodynamics describes what a drug does to the body, including receptor effects, dose-response
relationships, therapeutic effects, and adverse effects.
Rationale / Exam Note: PK focuses on drug concentration over time; PD focuses on the biological response produced by
that concentration.
3. QUESTION What is bioavailability?
Answer: Bioavailability is the fraction of an administered dose that reaches systemic circulation in active form.
Rationale / Exam Note: Intravenous administration has essentially 100% bioavailability. Oral bioavailability may be reduced
by incomplete absorption or first-pass metabolism.
4. QUESTION What is first-pass metabolism?
Answer: First-pass metabolism is presystemic metabolism of an orally administered drug in the intestinal wall and/or
liver before the drug reaches systemic circulation.
Rationale / Exam Note: High first-pass metabolism can substantially reduce oral bioavailability and may explain why some
drugs require different oral and parenteral doses.
5. QUESTION What is a loading dose?
Answer: A loading dose is a larger initial dose used to rapidly achieve a desired therapeutic concentration.
Rationale / Exam Note: Loading doses are particularly useful when the drug has a long half-life and delaying steady state
would leave the patient undertreated.
6. QUESTION What is a maintenance dose?
Answer: A maintenance dose is the ongoing dose used to maintain drug concentrations within the therapeutic range.
Rationale / Exam Note: Maintenance dosing depends on clearance, bioavailability, dosing interval, and the desired
steady-state concentration.
7. QUESTION What is half-life?
Answer: Half-life is the time required for the plasma concentration of a drug to decrease by 50%.
Rationale / Exam Note: Half-life helps determine dosing intervals and the time required to approach steady state or
eliminate most of a drug.
8. QUESTION Approximately how long does it usually take to reach steady state after repeated dosing?
Answer: About 4–5 half-lives.
Rationale / Exam Note: This is a pharmacokinetic rule of thumb. A drug with a very long half-life may therefore take days or
weeks to stabilize.
9. QUESTION What is a therapeutic index?
Answer: The therapeutic index is a measure of the relative safety margin between effective and toxic drug
concentrations.
Rationale / Exam Note: A narrow therapeutic index means small concentration changes can cause toxicity or loss of
efficacy, making monitoring especially important.
NR 566 Expanded Study Guide • Independent educational resource Page 2
, 10. QUESTION What is an agonist?
Answer: An agonist binds to a receptor and activates it to produce a biological response.
Rationale / Exam Note: Full agonists can produce maximal receptor responses; partial agonists produce a submaximal
response even when receptors are occupied.
11. QUESTION What is an antagonist?
Answer: An antagonist binds to a receptor without activating it and blocks or reduces the action of an agonist.
Rationale / Exam Note: Competitive antagonists may be displaced by increasing agonist concentration, depending on the
receptor system.
12. QUESTION What is a partial agonist?
Answer: A partial agonist activates a receptor but produces less than the maximal response of a full agonist.
Rationale / Exam Note: In the presence of a full agonist, a partial agonist can functionally reduce the overall response by
competing for receptors.
13. QUESTION Why are renal and hepatic function important when prescribing?
Answer: The kidneys and liver are major organs for drug elimination and metabolism, so impairment can increase
drug exposure and toxicity.
Rationale / Exam Note: Dose adjustment or increased monitoring may be required for drugs substantially cleared by the
kidneys or metabolized by impaired hepatic pathways.
14. QUESTION Why can older adults be more vulnerable to adverse drug effects?
Answer: Age-related changes in renal function, hepatic metabolism, body composition, and sensitivity to drugs can
increase exposure or pharmacodynamic effects.
Rationale / Exam Note: Polypharmacy and multiple comorbidities further increase interaction and adverse-event risk.
15. QUESTION What is a medication reconciliation?
Answer: A medication reconciliation compares the patient's actual medication use with the medication list and
resolves discrepancies.
Rationale / Exam Note: It should include prescription drugs, OTC products, supplements, allergies, doses, routes, and
frequency to reduce preventable medication errors.
16. QUESTION What is the difference between an adverse drug reaction and a medication error?
Answer: An adverse drug reaction is an unintended harmful response occurring despite appropriate use; a
medication error is a preventable mistake in prescribing, dispensing, administration, or monitoring.
Rationale / Exam Note: Both require attention, but medication errors also call for systems-level prevention strategies.
17. QUESTION Why should prescribers ask about OTC medications and supplements?
Answer: OTC products and supplements can cause adverse effects, duplicate therapy, or clinically important drug
interactions.
Rationale / Exam Note: Patients may not consider nonprescription products to be medications, so the clinician should ask
directly.
18. QUESTION What is a CYP450 enzyme inhibitor?
Answer: A CYP inhibitor decreases metabolism of susceptible drugs, potentially increasing their concentrations and
adverse effects.
Rationale / Exam Note: The interaction may be clinically important when the affected drug has a narrow therapeutic index.
NR 566 Expanded Study Guide • Independent educational resource Page 3
ADVANCED PHARMACOLOGY FOR CARE OF THE
FAMILY
EXPANDED MIDTERM STUDY GUIDE — PREMIUM
REVIEW EDITION
268 original Questions & Answers • Detailed rationales • Clinical application • Safety alerts • Memory cues
Independent educational resource. This guide is newly authored from pharmacology principles and the publicly visible topic areas of
the supplied Stuvia listing. It does not reproduce or reconstruct locked/premium text, and it is not affiliated with or endorsed by
Chamberlain University. It does not claim to contain actual exam questions or guaranteed exam answers.
Recommended study method
• Answer each question before reading the response.
• For every drug, learn: class → mechanism → indication → major adverse effects → contraindications/interactions →
teaching.
• For vignettes, identify the immediate safety threat before choosing a therapy.
• Review missed questions twice: immediately and again after a delay.
NR 566 Expanded Study Guide • Independent educational resource Page 1
, SECTION I — PHARMACOLOGY FOUNDATIONS & SAFE PRESCRIBING
1. QUESTION What is pharmacokinetics?
Answer: Pharmacokinetics describes what the body does to a drug: absorption, distribution, metabolism, and
excretion (ADME).
Rationale / Exam Note: A useful memory aid is ADME: Absorb → Distribute → Metabolize → Excrete. Pharmacokinetic
changes can alter drug concentration and duration of action.
2. QUESTION What is pharmacodynamics?
Answer: Pharmacodynamics describes what a drug does to the body, including receptor effects, dose-response
relationships, therapeutic effects, and adverse effects.
Rationale / Exam Note: PK focuses on drug concentration over time; PD focuses on the biological response produced by
that concentration.
3. QUESTION What is bioavailability?
Answer: Bioavailability is the fraction of an administered dose that reaches systemic circulation in active form.
Rationale / Exam Note: Intravenous administration has essentially 100% bioavailability. Oral bioavailability may be reduced
by incomplete absorption or first-pass metabolism.
4. QUESTION What is first-pass metabolism?
Answer: First-pass metabolism is presystemic metabolism of an orally administered drug in the intestinal wall and/or
liver before the drug reaches systemic circulation.
Rationale / Exam Note: High first-pass metabolism can substantially reduce oral bioavailability and may explain why some
drugs require different oral and parenteral doses.
5. QUESTION What is a loading dose?
Answer: A loading dose is a larger initial dose used to rapidly achieve a desired therapeutic concentration.
Rationale / Exam Note: Loading doses are particularly useful when the drug has a long half-life and delaying steady state
would leave the patient undertreated.
6. QUESTION What is a maintenance dose?
Answer: A maintenance dose is the ongoing dose used to maintain drug concentrations within the therapeutic range.
Rationale / Exam Note: Maintenance dosing depends on clearance, bioavailability, dosing interval, and the desired
steady-state concentration.
7. QUESTION What is half-life?
Answer: Half-life is the time required for the plasma concentration of a drug to decrease by 50%.
Rationale / Exam Note: Half-life helps determine dosing intervals and the time required to approach steady state or
eliminate most of a drug.
8. QUESTION Approximately how long does it usually take to reach steady state after repeated dosing?
Answer: About 4–5 half-lives.
Rationale / Exam Note: This is a pharmacokinetic rule of thumb. A drug with a very long half-life may therefore take days or
weeks to stabilize.
9. QUESTION What is a therapeutic index?
Answer: The therapeutic index is a measure of the relative safety margin between effective and toxic drug
concentrations.
Rationale / Exam Note: A narrow therapeutic index means small concentration changes can cause toxicity or loss of
efficacy, making monitoring especially important.
NR 566 Expanded Study Guide • Independent educational resource Page 2
, 10. QUESTION What is an agonist?
Answer: An agonist binds to a receptor and activates it to produce a biological response.
Rationale / Exam Note: Full agonists can produce maximal receptor responses; partial agonists produce a submaximal
response even when receptors are occupied.
11. QUESTION What is an antagonist?
Answer: An antagonist binds to a receptor without activating it and blocks or reduces the action of an agonist.
Rationale / Exam Note: Competitive antagonists may be displaced by increasing agonist concentration, depending on the
receptor system.
12. QUESTION What is a partial agonist?
Answer: A partial agonist activates a receptor but produces less than the maximal response of a full agonist.
Rationale / Exam Note: In the presence of a full agonist, a partial agonist can functionally reduce the overall response by
competing for receptors.
13. QUESTION Why are renal and hepatic function important when prescribing?
Answer: The kidneys and liver are major organs for drug elimination and metabolism, so impairment can increase
drug exposure and toxicity.
Rationale / Exam Note: Dose adjustment or increased monitoring may be required for drugs substantially cleared by the
kidneys or metabolized by impaired hepatic pathways.
14. QUESTION Why can older adults be more vulnerable to adverse drug effects?
Answer: Age-related changes in renal function, hepatic metabolism, body composition, and sensitivity to drugs can
increase exposure or pharmacodynamic effects.
Rationale / Exam Note: Polypharmacy and multiple comorbidities further increase interaction and adverse-event risk.
15. QUESTION What is a medication reconciliation?
Answer: A medication reconciliation compares the patient's actual medication use with the medication list and
resolves discrepancies.
Rationale / Exam Note: It should include prescription drugs, OTC products, supplements, allergies, doses, routes, and
frequency to reduce preventable medication errors.
16. QUESTION What is the difference between an adverse drug reaction and a medication error?
Answer: An adverse drug reaction is an unintended harmful response occurring despite appropriate use; a
medication error is a preventable mistake in prescribing, dispensing, administration, or monitoring.
Rationale / Exam Note: Both require attention, but medication errors also call for systems-level prevention strategies.
17. QUESTION Why should prescribers ask about OTC medications and supplements?
Answer: OTC products and supplements can cause adverse effects, duplicate therapy, or clinically important drug
interactions.
Rationale / Exam Note: Patients may not consider nonprescription products to be medications, so the clinician should ask
directly.
18. QUESTION What is a CYP450 enzyme inhibitor?
Answer: A CYP inhibitor decreases metabolism of susceptible drugs, potentially increasing their concentrations and
adverse effects.
Rationale / Exam Note: The interaction may be clinically important when the affected drug has a narrow therapeutic index.
NR 566 Expanded Study Guide • Independent educational resource Page 3
