MSN 570 WEEK 3 QUIZ | QUESTIONS AND ANSWERS ALREADY GRADED A+| 100% VERIFIED
SOLUTIONS - USU………...
CORE DOMAINS
Pharmacokinetics and Pharmacodynamics
Pharmacogenomics and Individual Variation
Autonomic Nervous System Pharmacology
Cardiovascular Pharmacology
Endocrine Pharmacology
Antimicrobial Therapy
Central Nervous System Pharmacology
Medication Safety and Prescribing
Legal, Ethical, and Professional Standards
Geriatric and Pediatric Considerations
INTRODUCTION
This examination assesses advanced nursing pharmacology knowledge required for safe
prescribing, monitoring, and patient education. It evaluates foundational pharmacokinetic and
pharmacodynamic principles, applied professional decision-making, regulatory and legal
compliance, ethical prescribing standards, and real-world clinical scenarios. The multiple-choice
and scenario-based structure emphasizes critical thinking, medication safety, adverse effect
recognition, drug interactions, and appropriate therapeutic selection across diverse patient
populations. Learners must demonstrate the ability to apply evidence-based pharmacology to
complex practice situations while maintaining professional accountability and patient-centered
care.
,SECTION ONE: QUESTIONS 1–100
1. Which pharmacokinetic process most directly reduces bioavailability of an oral drug before it
reaches systemic circulation?
A. Renal excretion
🟢 B. First-pass hepatic metabolism
C. Plasma protein binding
D. Tissue redistribution
🔴 RATIONALE: First-pass hepatic metabolism reduces the amount of orally administered drug
reaching systemic circulation, lowering bioavailability.
2. Which pharmacodynamic concept describes the ratio of toxic dose to therapeutic dose?
A. Potency
B. Efficacy
C. Receptor affinity
🟢 D. Therapeutic index
🔴 RATIONALE: Therapeutic index compares toxic dose with therapeutic dose; a narrow index
increases toxicity risk.
3. Which drug is a prodrug that requires CYP2D6 conversion to morphine for analgesic effect?
🟢 A. Codeine
B. Amoxicillin
,C. Acetaminophen
D. Furosemide
🔴 RATIONALE: Codeine requires CYP2D6-mediated conversion to morphine to produce
analgesia.
4. Which receptor mediates increased heart rate and myocardial contractility?
A. Alpha-1
B. Beta-2
🟢 C. Beta-1
D. Muscarinic-2
🔴 RATIONALE: Beta-1 receptors primarily mediate cardiac chronotropy and inotropy.
5. A patient on an ACE inhibitor develops a dry cough. Which mediator likely contributes?
A. Histamine
🟢 B. Bradykinin
C. Serotonin
D. Dopamine
🔴 RATIONALE: ACE inhibition reduces bradykinin breakdown, contributing to cough.
6. Warfarin monitoring is best assessed by which laboratory test?
, 🟢 A. INR
B. aPTT
C. Platelet count
D. Bleeding time
🔴 RATIONALE: INR reflects warfarin's anticoagulant effect and is used for dose adjustment.
7. Which serious adverse effect is associated with metformin, especially in renal impairment?
A. Hypoglycemia
B. Weight gain
C. Hyperkalemia
🟢 D. Lactic acidosis
🔴 RATIONALE: Metformin can accumulate in renal impairment and rarely cause lactic acidosis.
8. A patient reports hives and wheezing immediately after penicillin. This is best classified as:
A. Type II hypersensitivity
B. Type III hypersensitivity
🟢 C. Type I hypersensitivity
D. Type IV hypersensitivity
🔴 RATIONALE: Immediate hives and wheezing after penicillin indicate IgE-mediated Type I
hypersensitivity.
9. Benzodiazepines enhance the effect of which neurotransmitter?
SOLUTIONS - USU………...
CORE DOMAINS
Pharmacokinetics and Pharmacodynamics
Pharmacogenomics and Individual Variation
Autonomic Nervous System Pharmacology
Cardiovascular Pharmacology
Endocrine Pharmacology
Antimicrobial Therapy
Central Nervous System Pharmacology
Medication Safety and Prescribing
Legal, Ethical, and Professional Standards
Geriatric and Pediatric Considerations
INTRODUCTION
This examination assesses advanced nursing pharmacology knowledge required for safe
prescribing, monitoring, and patient education. It evaluates foundational pharmacokinetic and
pharmacodynamic principles, applied professional decision-making, regulatory and legal
compliance, ethical prescribing standards, and real-world clinical scenarios. The multiple-choice
and scenario-based structure emphasizes critical thinking, medication safety, adverse effect
recognition, drug interactions, and appropriate therapeutic selection across diverse patient
populations. Learners must demonstrate the ability to apply evidence-based pharmacology to
complex practice situations while maintaining professional accountability and patient-centered
care.
,SECTION ONE: QUESTIONS 1–100
1. Which pharmacokinetic process most directly reduces bioavailability of an oral drug before it
reaches systemic circulation?
A. Renal excretion
🟢 B. First-pass hepatic metabolism
C. Plasma protein binding
D. Tissue redistribution
🔴 RATIONALE: First-pass hepatic metabolism reduces the amount of orally administered drug
reaching systemic circulation, lowering bioavailability.
2. Which pharmacodynamic concept describes the ratio of toxic dose to therapeutic dose?
A. Potency
B. Efficacy
C. Receptor affinity
🟢 D. Therapeutic index
🔴 RATIONALE: Therapeutic index compares toxic dose with therapeutic dose; a narrow index
increases toxicity risk.
3. Which drug is a prodrug that requires CYP2D6 conversion to morphine for analgesic effect?
🟢 A. Codeine
B. Amoxicillin
,C. Acetaminophen
D. Furosemide
🔴 RATIONALE: Codeine requires CYP2D6-mediated conversion to morphine to produce
analgesia.
4. Which receptor mediates increased heart rate and myocardial contractility?
A. Alpha-1
B. Beta-2
🟢 C. Beta-1
D. Muscarinic-2
🔴 RATIONALE: Beta-1 receptors primarily mediate cardiac chronotropy and inotropy.
5. A patient on an ACE inhibitor develops a dry cough. Which mediator likely contributes?
A. Histamine
🟢 B. Bradykinin
C. Serotonin
D. Dopamine
🔴 RATIONALE: ACE inhibition reduces bradykinin breakdown, contributing to cough.
6. Warfarin monitoring is best assessed by which laboratory test?
, 🟢 A. INR
B. aPTT
C. Platelet count
D. Bleeding time
🔴 RATIONALE: INR reflects warfarin's anticoagulant effect and is used for dose adjustment.
7. Which serious adverse effect is associated with metformin, especially in renal impairment?
A. Hypoglycemia
B. Weight gain
C. Hyperkalemia
🟢 D. Lactic acidosis
🔴 RATIONALE: Metformin can accumulate in renal impairment and rarely cause lactic acidosis.
8. A patient reports hives and wheezing immediately after penicillin. This is best classified as:
A. Type II hypersensitivity
B. Type III hypersensitivity
🟢 C. Type I hypersensitivity
D. Type IV hypersensitivity
🔴 RATIONALE: Immediate hives and wheezing after penicillin indicate IgE-mediated Type I
hypersensitivity.
9. Benzodiazepines enhance the effect of which neurotransmitter?
