NSG 533 Opioid Quiz Study Guide: Advanced Pharmacology
Practice Questions & Answers
This specialized clinical test-preparation guide features targeted practice questions,
verified answers, and detailed therapeutic rationales designed explicitly for the NSG 533
Opioid Quiz. It provides comprehensive graduate-level coverage of opioid
pharmacology, including mu-receptor agonism, adverse effect mitigation, equianalgesic
dosing conversions, and strict opioid rotation protocols. Advanced practice nursing
students will master substance use disorder criteria, safety monitoring parameters, and
prescriptive compliance regulations required to pass their proctored clinical
assessments.
SECTION 1: OPIOID BASICS & MECHANISMS (Questions 1–
40)
1. Which of the following best describes the primary mechanism of action of
opioid analgesics?
A) Blocking sodium channels in peripheral nerves
B) Binding to mu, kappa, and delta opioid receptors in the CNS
C) Inhibiting cyclooxygenase enzymes
D) Blocking calcium channels in smooth muscle
Rationale: Opioids produce analgesia by binding to specific G-protein-coupled receptors
(mu, kappa, delta) in the central and peripheral nervous systems, inhibiting pain signal
transmission.
2. Which opioid receptor is primarily responsible for analgesia and the major side
effects of opioids?
A) Delta receptor
B) Kappa receptor
C) Mu receptor
D) Sigma receptor
Rationale: The mu receptor mediates analgesia, respiratory depression, euphoria, sedation,
and physical dependence, making it the primary target of most opioid analgesics.
,3. A nurse is teaching a client about opioid tolerance. Which statement indicates
understanding?
A) "Tolerance means I am addicted to the medication."
B) "Tolerance means I need higher doses to achieve the same pain relief."
C) "Tolerance means the medication no longer works at all."
D) "Tolerance means I will experience withdrawal if I stop."
Rationale: Tolerance is a pharmacologic phenomenon requiring increased doses to achieve
the same effect; it is distinct from addiction and physical dependence.
4. Which of the following is a pure opioid antagonist?
A) Buprenorphine
B) Naloxone
C) Pentazocine
D) Tramadol
Rationale: Naloxone is a pure opioid antagonist that reverses opioid effects by
competitively blocking opioid receptors.
5. A nurse is explaining the difference between opioid agonists and agonist-
antagonists. Which statement is correct?
A) Agonists block opioid receptors
B) Agonist-antagonists have mixed effects, activating one receptor while blocking
another
C) Antagonists produce analgesia
D) Agonists have no ceiling effect
Rationale: Agonist-antagonists (e.g., pentazocine, butorphanol) activate kappa receptors
while blocking mu receptors, producing analgesia with a ceiling effect.
6. Which opioid is classified as a partial agonist?
A) Morphine
B) Buprenorphine
C) Fentanyl
D) Methadone
Rationale: Buprenorphine is a partial mu agonist with a ceiling effect on respiratory
depression, making it safer in overdose compared to full agonists.
7. A nurse is teaching about the ceiling effect of opioids. Which opioid exhibits a
ceiling effect?
A) Morphine
B) Hydromorphone
C) Buprenorphine
D) Fentanyl
,Rationale: Buprenorphine exhibits a ceiling effect because it is a partial agonist; increasing
doses beyond a certain point does not increase respiratory depression.
8. Which endogenous opioid peptides are naturally produced by the body?
A) Serotonin and dopamine
B) Endorphins, enkephalins, and dynorphins
C) Acetylcholine and norepinephrine
D) GABA and glutamate
Rationale: Endorphins, enkephalins, and dynorphins are endogenous opioid peptides that
bind to opioid receptors to modulate pain.
9. A nurse is administering an opioid to a client. Which route provides the fastest
onset of action?
A) Oral
B) Subcutaneous
C) Intramuscular
D) Intravenous
Rationale: Intravenous administration provides the fastest onset of opioid action, typically
within 5–10 minutes.
10. Which opioid has the longest duration of action?
A) Morphine
B) Hydromorphone
C) Methadone
D) Fentanyl
Rationale: Methadone has a long and variable half-life (8–59 hours), allowing for once or
twice daily dosing in opioid maintenance therapy.
11. A nurse is teaching a client about opioid-induced respiratory depression.
Which assessment finding is the earliest indicator?
A) Cyanosis
B) Decreased respiratory rate
C) Oxygen saturation below 85%
D) Unresponsiveness
Rationale: A decreased respiratory rate is the earliest and most reliable indicator of opioid-
induced respiratory depression.
12. Which medication is used to reverse opioid-induced respiratory depression?
A) Flumazenil
B) Naloxone
C) Atropine
, D) Protamine sulfate
Rationale: Naloxone is a pure opioid antagonist that rapidly reverses respiratory
depression and sedation caused by opioids.
13. A nurse is preparing to administer naloxone. Which action is correct?
A) Administer as a rapid IV push
B) Administer as a slow IV push and titrate to effect
C) Administer intramuscularly only
D) Administer subcutaneously only
Rationale: Naloxone should be administered slowly and titrated to reverse respiratory
depression while avoiding acute withdrawal symptoms.
14. A client receiving opioids reports constipation. Which intervention should the
nurse recommend?
A) Increase opioid dose
B) Increase fluid and fiber intake
C) Decrease physical activity
D) Take antacids
Rationale: Opioid-induced constipation is managed with increased fluids, fiber, and stool
softeners; opioids decrease gastrointestinal motility.
15. Which opioid is commonly used for opioid use disorder treatment?
A) Morphine
B) Methadone
C) Fentanyl
D) Oxycodone
Rationale: Methadone is used for opioid maintenance therapy because of its long half-life
and ability to reduce cravings and withdrawal symptoms.
16. A nurse is teaching about opioid-induced nausea. Which intervention is most
appropriate?
A) Administer naloxone
B) Administer an antiemetic such as ondansetron
C) Increase opioid dose
D) Discontinue the opioid
Rationale: Opioid-induced nausea is commonly treated with antiemetics; tolerance to
nausea often develops within a few days.
17. Which opioid is available as a transdermal patch?
A) Morphine
B) Fentanyl
Practice Questions & Answers
This specialized clinical test-preparation guide features targeted practice questions,
verified answers, and detailed therapeutic rationales designed explicitly for the NSG 533
Opioid Quiz. It provides comprehensive graduate-level coverage of opioid
pharmacology, including mu-receptor agonism, adverse effect mitigation, equianalgesic
dosing conversions, and strict opioid rotation protocols. Advanced practice nursing
students will master substance use disorder criteria, safety monitoring parameters, and
prescriptive compliance regulations required to pass their proctored clinical
assessments.
SECTION 1: OPIOID BASICS & MECHANISMS (Questions 1–
40)
1. Which of the following best describes the primary mechanism of action of
opioid analgesics?
A) Blocking sodium channels in peripheral nerves
B) Binding to mu, kappa, and delta opioid receptors in the CNS
C) Inhibiting cyclooxygenase enzymes
D) Blocking calcium channels in smooth muscle
Rationale: Opioids produce analgesia by binding to specific G-protein-coupled receptors
(mu, kappa, delta) in the central and peripheral nervous systems, inhibiting pain signal
transmission.
2. Which opioid receptor is primarily responsible for analgesia and the major side
effects of opioids?
A) Delta receptor
B) Kappa receptor
C) Mu receptor
D) Sigma receptor
Rationale: The mu receptor mediates analgesia, respiratory depression, euphoria, sedation,
and physical dependence, making it the primary target of most opioid analgesics.
,3. A nurse is teaching a client about opioid tolerance. Which statement indicates
understanding?
A) "Tolerance means I am addicted to the medication."
B) "Tolerance means I need higher doses to achieve the same pain relief."
C) "Tolerance means the medication no longer works at all."
D) "Tolerance means I will experience withdrawal if I stop."
Rationale: Tolerance is a pharmacologic phenomenon requiring increased doses to achieve
the same effect; it is distinct from addiction and physical dependence.
4. Which of the following is a pure opioid antagonist?
A) Buprenorphine
B) Naloxone
C) Pentazocine
D) Tramadol
Rationale: Naloxone is a pure opioid antagonist that reverses opioid effects by
competitively blocking opioid receptors.
5. A nurse is explaining the difference between opioid agonists and agonist-
antagonists. Which statement is correct?
A) Agonists block opioid receptors
B) Agonist-antagonists have mixed effects, activating one receptor while blocking
another
C) Antagonists produce analgesia
D) Agonists have no ceiling effect
Rationale: Agonist-antagonists (e.g., pentazocine, butorphanol) activate kappa receptors
while blocking mu receptors, producing analgesia with a ceiling effect.
6. Which opioid is classified as a partial agonist?
A) Morphine
B) Buprenorphine
C) Fentanyl
D) Methadone
Rationale: Buprenorphine is a partial mu agonist with a ceiling effect on respiratory
depression, making it safer in overdose compared to full agonists.
7. A nurse is teaching about the ceiling effect of opioids. Which opioid exhibits a
ceiling effect?
A) Morphine
B) Hydromorphone
C) Buprenorphine
D) Fentanyl
,Rationale: Buprenorphine exhibits a ceiling effect because it is a partial agonist; increasing
doses beyond a certain point does not increase respiratory depression.
8. Which endogenous opioid peptides are naturally produced by the body?
A) Serotonin and dopamine
B) Endorphins, enkephalins, and dynorphins
C) Acetylcholine and norepinephrine
D) GABA and glutamate
Rationale: Endorphins, enkephalins, and dynorphins are endogenous opioid peptides that
bind to opioid receptors to modulate pain.
9. A nurse is administering an opioid to a client. Which route provides the fastest
onset of action?
A) Oral
B) Subcutaneous
C) Intramuscular
D) Intravenous
Rationale: Intravenous administration provides the fastest onset of opioid action, typically
within 5–10 minutes.
10. Which opioid has the longest duration of action?
A) Morphine
B) Hydromorphone
C) Methadone
D) Fentanyl
Rationale: Methadone has a long and variable half-life (8–59 hours), allowing for once or
twice daily dosing in opioid maintenance therapy.
11. A nurse is teaching a client about opioid-induced respiratory depression.
Which assessment finding is the earliest indicator?
A) Cyanosis
B) Decreased respiratory rate
C) Oxygen saturation below 85%
D) Unresponsiveness
Rationale: A decreased respiratory rate is the earliest and most reliable indicator of opioid-
induced respiratory depression.
12. Which medication is used to reverse opioid-induced respiratory depression?
A) Flumazenil
B) Naloxone
C) Atropine
, D) Protamine sulfate
Rationale: Naloxone is a pure opioid antagonist that rapidly reverses respiratory
depression and sedation caused by opioids.
13. A nurse is preparing to administer naloxone. Which action is correct?
A) Administer as a rapid IV push
B) Administer as a slow IV push and titrate to effect
C) Administer intramuscularly only
D) Administer subcutaneously only
Rationale: Naloxone should be administered slowly and titrated to reverse respiratory
depression while avoiding acute withdrawal symptoms.
14. A client receiving opioids reports constipation. Which intervention should the
nurse recommend?
A) Increase opioid dose
B) Increase fluid and fiber intake
C) Decrease physical activity
D) Take antacids
Rationale: Opioid-induced constipation is managed with increased fluids, fiber, and stool
softeners; opioids decrease gastrointestinal motility.
15. Which opioid is commonly used for opioid use disorder treatment?
A) Morphine
B) Methadone
C) Fentanyl
D) Oxycodone
Rationale: Methadone is used for opioid maintenance therapy because of its long half-life
and ability to reduce cravings and withdrawal symptoms.
16. A nurse is teaching about opioid-induced nausea. Which intervention is most
appropriate?
A) Administer naloxone
B) Administer an antiemetic such as ondansetron
C) Increase opioid dose
D) Discontinue the opioid
Rationale: Opioid-induced nausea is commonly treated with antiemetics; tolerance to
nausea often develops within a few days.
17. Which opioid is available as a transdermal patch?
A) Morphine
B) Fentanyl
