Opioids Que Bank

Question #1
Which of the following opioids is associated with the production of excitatory and proconvulsant metabolites?

A) Morphine
B) Codeine
C) Meperidine
D) Hydromorphone
E) Naloxone

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Question #2
Which of the following mechanisms best explains the analgesic effect of morphine?

A) Inhibition of GABA release
B) Activation of Gs protein
C) Inhibition of serotonin reuptake
D) Activation of the µ-opioid receptor, leading to decreased intracellular calcium
E) Activation of the NMDA receptor

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Question #3
Which of the following statements about COX-2 inhibitors like celecoxib is incorrect?

A) COX-2 inhibitors selectively inhibit the COX-2 enzyme involved in inflammation.
B) COX-2 inhibitors are associated with a lower risk of GI bleeding compared to nonselective NSAIDs.
C) COX-2 inhibitors are safe for use in patients with peptic ulcer disease.
D) COX-2 inhibitors can delay the healing of existing GI ulcers.
E) COX-2 inhibitors are indicated for both osteoarthritis and rheumatoid arthritis.

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Question #4
Which of the following side effects is most commonly associated with the use of fentanyl patches?

A) Respiratory depression
B) Tachycardia
C) Hypertension
D) Diarrhea
E) Hyperglycemia

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Question #5
Which opioid is primarily used for its antitussive (cough suppressant) properties rather than its analgesic effects?

A) Codeine
B) Morphine
C) Fentanyl
D) Methadone
E) Naloxone

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Question #6
Which opioid receptor is primarily associated with euphoria, respiratory depression, and physical dependence?
A) Delta (δ) Receptors
B) Kappa (κ) Receptors
C) Mu (μ) Receptors
D) ORL-1 (NOP) Receptors
E) Sigma (σ) Receptors

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Question #7
Which receptor type is least likely to cause respiratory depression but may be involved in mood regulation?
A) Mu (μ) Receptors
B) Delta (δ) Receptors
C) Kappa (κ) Receptors
D) ORL-1 (NOP) Receptors
E) Sigma (σ) Receptors

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Question #8
Which opioid receptor is most closely linked to dysphoria, hallucinations, and diuresis?
A) Delta (δ) Receptors
B) Mu (μ) Receptors
C) Kappa (κ) Receptors
D) ORL-1 (NOP) Receptors
E) Sigma (σ) Receptors

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Question #9
Nociceptin, which modulates both anti-nociceptive and pro-nociceptive effects depending on the site, is the endogenous ligand for which receptor?
A) Mu (μ) Receptors
B) Delta (δ) Receptors
C) Kappa (κ) Receptors
D) ORL-1 (NOP) Receptors
E) Sigma (σ) Receptors

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Question #10
Which type of analgesia is primarily mediated through the inhibition of pain signal transmission at the spinal cord level?
A) Central Analgesia
B) Peripheral Analgesia
C) Spinal Analgesia
D) Nociceptive Analgesia
E) Cognitive Analgesia

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Question #11
Which of the following opioids is classified as a full agonist with high potency?
A) Codeine
B) Buprenorphine
C) Pentazocine
D) Fentanyl
E) Tramadol

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Question #12
Which of the following opioids is considered a low potency full agonist?
A) Oxymorphone
B) Hydrocodone
C) Propoxyphene
D) Heroin
E) Buprenorphine

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Question #13
Buprenorphine is best classified as which of the following?
A) Full Agonist
B) Partial Agonist
C) Mixed Agonist-Antagonist
D) Antagonist
E) High Potency Agonist

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Question #14
Which of the following drugs is a mixed agonist-antagonist?
A) Naloxone
B) Butorphanol
C) Methadone
D) Tramadol
E) Tapentadol

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Question #15
Naloxone is classified as which type of opioid receptor modulator?
A) Full Agonist
B) Partial Agonist
C) Mixed Agonist-Antagonist
D) Antagonist
E) Low Potency Agonist

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Question #16
Which of the following opioid side effects falls under the gastrointestinal category?
A) Bradycardia
B) Cognitive impairment
C) Respiratory depression
D) Constipation
E) Hypogonadism

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Question #17
What is a common central nervous system (CNS) side effect of opioids?
A) Hyperalgesia
B) Bradycardia
C) Immunosuppression
D) Urinary retention
E) Pruritus

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Question #18
Which of the following side effects is associated with opioid-induced respiratory complications?
A) Itching
B) Hypotension
C) Respiratory depression
D) Cognitive impairment
E) Adrenal insufficiency

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Question #19
What cardiovascular side effect is commonly associated with opioid use?
A) Euphoria
B) Bradycardia
C) Hyperthermia
D) Muscle rigidity
E) Agitation

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Question #20
Which side effect is related to opioid use and the endocrine system?
A) Adrenal insufficiency
B) Hallucinations
C) Biliary spasms
D) Pruritus
E) Urinary retention

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Question #21
Which of the following treatments is preferred for managing constipation induced by opioid use?
A) Ondansetron
B) Metoclopramide
C) Sennosides
D) Fentanyl
E) Oxycodone

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Question #22
Which drugs are commonly used to manage nausea and vomiting associated with opioid use?
A) Sennosides and Lactulose
B) Ondansetron and Metoclopramide
C) Fentanyl and Oxycodone
D) Morphine and Meperidine
E) Codeine and Hydromorphone

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Question #23
Which of the following opioids is most likely to cause histamine release, leading to symptoms like itching and flushing?
A) Fentanyl
B) Hydromorphone
C) Oxycodone
D) Morphine
E) Tramadol

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Question #24
Which opioid is less likely to cause histamine-related side effects such as bronchoconstriction or hypotension?
A) Morphine
B) Meperidine
C) Codeine
D) Fentanyl
E) Naloxone

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Question #25
Which of the following symptoms is most directly associated with histamine release caused by opioids like morphine or codeine?
A) Hypertension
B) Tachycardia
C) Pruritus
D) Hyperthermia
E) Diarrhea

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Question #26
Which of the following symptoms is most commonly associated with opioid withdrawal?
A) Constipation
B) Diarrhea
C) Sedation
D) Hypotension
E) Pruritus

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Question #27
Which of the following is a typical psychological symptom of opioid withdrawal?
A) Euphoria
B) Anxiety
C) Hypomania
D) Delirium
E) Amnesia

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Question #28
Which physical symptom is often experienced during the early stages of opioid withdrawal?
A) Hyperthermia
B) Muscle aches
C) Constipation
D) Weight gain
E) Increased appetite

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Question #29
Which of the following is a distinguishing feature of opioid withdrawal compared to withdrawal from other substances?
A) Increased appetite
B) Hyperactivity
C) Mydriasis (pupil dilation)
D) Hypertension
E) Hypothermia

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Question #30
Which of the following is an autonomic symptom of opioid withdrawal?
A) Tachycardia
B) Bradycardia
C) Hypertension
D) Both A and C
E) Both B and C

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Question #31
Which of the following best describes opioid tolerance?
A) The body’s reduced response to a drug after repeated use, requiring higher doses to achieve the same effect.
B) The development of withdrawal symptoms after discontinuation of the drug.
C) The immediate effectiveness of a drug upon first use.
D) The body’s allergic reaction to opioids.
E) The need for opioids only in acute pain situations.

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Question #32
Which of the following statements is true regarding opioid tolerance and dependence?
A) Tolerance refers to the body’s need for the drug to avoid withdrawal symptoms.
B) Dependence develops without the need for increasing doses over time.
C) Tolerance involves the need for increasing doses to achieve the same effect, while dependence involves withdrawal symptoms upon cessation.
D) Tolerance and dependence are the same processes.
E) Neither tolerance nor dependence can be reversed.

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Question #33
When a patient develops opioid tolerance, which of the following is a common clinical approach?
A) Reducing the dose of the current opioid.
B) Abruptly discontinuing the opioid.
C) Switching to a different opioid using Morphine Equivalent Dosing (MED).
D) Increasing the dose without calculating MED.
E) Using non-opioid medications exclusively.

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Question #34
Which of the following effects is most likely to develop tolerance at a different rate than others?
A) Analgesia
B) Respiratory depression
C) Euphoria
D) Sedation
E) All of the above

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Question #35
A patient on long-term opioid therapy reports needing higher doses to manage pain. What might this indicate?
A) Development of opioid tolerance
B) Onset of opioid dependence
C) Inadequate pain management
D) Both A and C
E) Both B and C

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Question #36
Which of the following symptoms is a key indicator of opioid overdose?
A) Tachycardia
B) Pinpoint pupils
C) Increased respiratory rate
D) Hyperactivity
E) Elevated blood pressure

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Question #37
What is the recommended first step if you suspect someone is experiencing an opioid overdose?
A) Attempt to wake them up by shaking them
B) Administer Naloxone immediately
C) Call 911 (or your local emergency number)
D) Perform CPR
E) Place them in the recovery position

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Question #38
What is the typical breathing rate in a person experiencing opioid overdose?
A) 20 – 24 breaths/minute
B) 16 – 18 breaths/minute
C) 12 – 14 breaths/minute
D) < 12 breaths/minute
E) 24 – 30 breaths/minute

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Question #39
After administering the first dose of Naloxone, what should be done if the person does not respond within 2-3 minutes?
A) Wait for emergency services to arrive
B) Administer another dose of Naloxone
C) Place the person in the recovery position
D) Attempt to wake the person by shaking them
E) Check for a pulse

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Question #40
Which of the following is a common sign that someone is experiencing an opioid overdose, sometimes referred to as the “death rattle”?
A) Gurgling or choking sounds
B) Rapid breathing
C) Sweating
D) Continuous coughing
E) High-pitched wheezing

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Question #41
What is the primary use of Methadone in Canada?
A) Pain management in cancer patients
B) Treatment of opioid withdrawal symptoms and reduction of opioid cravings
C) Anesthesia during surgery
D) Management of chronic pain in non-cancer patients
E) Treatment of alcohol withdrawal

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Question #42
What is Methadone Maintenance Treatment (MMT) primarily used for in Canada?
A) Pain management in acute injuries
B) Reducing inflammation in autoimmune diseases
C) Daily management of opioid use disorder
D) Short-term detoxification from opioids
E) Sleep aid for insomnia

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Question #43
Which of the following statements best describes the role of Methadone in harm reduction during the opioid crisis?
A) Methadone is used to detoxify patients rapidly from all substances
B) Methadone provides a safer, controlled alternative to illicit opioid use, reducing the risk of overdose and improving health outcomes
C) Methadone is used exclusively for pain management in terminally ill patients
D) Methadone is only used for short-term management of acute opioid intoxication
E) Methadone is primarily used in emergency settings to treat opioid overdose

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Question #44
Which alternative to Methadone is increasingly being used in Canada for opioid dependence treatment due to its lower risk of overdose?
A) Buprenorphine/Naloxone (Suboxone)
B) Fentanyl
C) Morphine sulfate
D) Codeine
E) Oxycodone

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Question #45
Which of the following best describes the method of methadone administration in Methadone Maintenance Treatment (MMT) programs in Canada?
A) Administered in a single dose at the start of the treatment and then tapered
B) Administered under direct supervision, often daily, in a clinical setting
C) Self-administered with minimal clinical supervision
D) Administered only in emergency situations
E) Administered intravenously in hospital settings only

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Question #46
Which of the following characteristics best differentiates Naltrexone from Naloxone?
A) Naltrexone is less potent than Naloxone.
B) Naltrexone has a longer duration of action than Naloxone.
C) Naltrexone is primarily used for opioid overdose reversal.
D) Naloxone can be administered orally with full potency.
E) Naloxone has more frequent side effects than Naltrexone.

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Question #47
Which of the following is the primary use of Naloxone?
A) Treatment of opioid dependence
B) Reduction of alcohol craving
C) Reversal of opioid overdose
D) Management of opioid abstinence
E) Long-term opioid therapy management

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Question #48
Which of the following statements is true regarding the metabolism of Naltrexone?
A) It is rapidly metabolized via glucuronidation in the liver, similar to Naloxone.
B) It undergoes a significant first-pass effect, producing an active metabolite, 6-β-naltrexol.
C) It is excreted unchanged in the urine.
D) It requires repeated dosing due to its short duration of action.
E) It is primarily metabolized in the kidneys.

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Question #49
In what situation would repeated dosing of Naloxone be necessary?
A) When treating opioid dependence
B) When reversing opioid overdose due to short duration of action
C) When managing alcohol withdrawal symptoms
D) When used as a long-term treatment for opioid abstinence
E) When combined with Naltrexone for enhanced potency

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Question #50
Which of the following is a special consideration when using Naltrexone?
A) It can cause hepatotoxicity and should be used with care in patients with liver damage.
B) It requires immediate administration in opioid overdose situations.
C) It has minimal side effects and can be used freely in all patients.
D) It blocks all opioid side effects, including hallucinations.
E) It is less potent than Naloxone and requires higher doses for effectiveness.

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Question #51
What is the primary role of Buprenorphine in the Suboxone formulation?
A) To completely block opioid receptors and prevent any opioid effects
B) To reduce withdrawal symptoms and cravings in opioid-dependent individuals
C) To induce rapid opioid detoxification
D) To serve as a full opioid agonist similar to methadone
E) To cause immediate opioid receptor blockade

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Question #52
Why is Naloxone included in the Suboxone formulation?
A) To enhance the analgesic effects of Buprenorphine
B) To prevent overdose if Suboxone is taken in large quantities
C) To deter misuse by precipitating withdrawal symptoms if injected
D) To increase the potency of Buprenorphine
E) To serve as a primary treatment for opioid dependence

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Question #53
Which of the following describes the correct administration method of Suboxone to ensure its effectiveness?
A) Subcutaneous injection
B) Intramuscular injection
C) Oral ingestion with water
D) Sublingual or buccal administration
E) Intravenous injection

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Question #54
What might happen if a patient attempts to misuse Suboxone by injecting it?
A) The patient will experience increased euphoria due to higher drug absorption
B) The patient may experience precipitated withdrawal due to the effects of Naloxone
C) The patient will feel no effects because Suboxone is inactive when injected
D) The patient will experience severe respiratory depression
E) The patient will have an enhanced therapeutic effect due to rapid absorption

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Question #55
Which of the following is true regarding the therapeutic effect of Suboxone in opioid dependence treatment?
A) It acts as a full opioid agonist, similar to heroin or methadone
B) It fully blocks all opioid receptors, preventing any opioid effect
C) It provides a safer alternative by reducing withdrawal symptoms and cravings without causing significant euphoria
D) It is only effective when used in combination with other opioids
E) It works by enhancing the effects of other opioids

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Question #56
What is the primary clinical use of fentanyl patches?
A) Treatment of acute pain
B) Management of chronic pain in opioid-tolerant patients
C) Relief of mild, intermittent pain
D) Postoperative pain management
E) Treatment of opioid addiction

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Question #57
A patient currently taking 60 mg of oral morphine daily is switched to a fentanyl patch. Which of the following is the most appropriate initial fentanyl patch dose?
A) 12 mcg/hour
B) 25 mcg/hour
C) 50 mcg/hour
D) 75 mcg/hour
E) 100 mcg/hour

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Question #58
How often should a fentanyl patch be replaced?
A) Every 12 hours
B) Every 24 hours
C) Every 48 hours
D) Every 72 hours
E) Every 7 days

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Question #59
What is a critical safety consideration when prescribing fentanyl patches?
A) They should be used in opioid-naive patients
B) They can be applied directly to irritated or broken skin
C) They should be reserved for patients with chronic pain who are already opioid-tolerant
D) They can be safely combined with other opioid medications
E) They can be cut to adjust the dose

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Question #60
A patient requires a switch from a 25 mcg/hour fentanyl patch to oral morphine. What would be the appropriate total daily dose of oral morphine?
A) 30 mg
B) 45 mg
C) 60 mg
D) 75 mg
E) 100 mg

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Question #61
Why is buprenorphine used as a maintenance treatment in opioid dependence?
A) It is a full opioid agonist with a high risk of overdose
B) It provides a shorter duration of action than other opioids
C) It is a partial opioid agonist with a ceiling effect, reducing the risk of overdose
D) It has no potential for abuse
E) It causes more intense euphoria than other opioids

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Question #62
Which of the following best describes the role of naltrexone in the treatment of alcohol withdrawal?
A) Naltrexone blocks the physical symptoms of alcohol withdrawal
B) Naltrexone reduces the cravings for alcohol and the pleasure derived from drinking
C) Naltrexone acts as a sedative to manage anxiety during withdrawal
D) Naltrexone prevents seizures during alcohol withdrawal
E) Naltrexone is used to detoxify the liver during alcohol withdrawal

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Some case-type questions

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Case: A 32-year-old male is brought to the emergency department by his friends after being found unresponsive at a party. The friends report that he has a history of opioid use and was using heroin earlier in the evening. Upon examination, the patient is barely responsive, has pinpoint pupils, shallow breathing at 8 breaths per minute, and a bluish tint around his lips and fingernails.

Question: What is the most appropriate immediate action to take for this patient?

Answer Options:

• A) Administer activated charcoal to prevent further absorption of the opioid.
• B) Provide supplemental oxygen and wait for the patient to wake up.
• C) Administer Naloxone and provide respiratory support as needed.
• D) Place the patient in the recovery position and monitor vital signs closely.
• E) Initiate intravenous fluids to correct potential dehydration.

Correct Answer: C) Administer Naloxone and provide respiratory support as needed.

Explanation: Naloxone is the first-line treatment for opioid overdose and should be administered immediately to reverse the effects of the opioid, particularly respiratory depression. After Naloxone administration, the patient’s breathing should be closely monitored, and respiratory support should be provided as needed.

Follow-Up Question: After administering Naloxone, the patient becomes more responsive but starts experiencing agitation and pain. What should the healthcare team do next?

Answer Options:

• A) Administer another dose of Naloxone to further reverse the opioid effects.
• B) Provide the patient with a benzodiazepine to calm his agitation.
• C) Monitor the patient closely for potential re-sedation and provide supportive care.
• D) Administer a small dose of an opioid to relieve pain and prevent withdrawal symptoms.
• E) Discharge the patient after ensuring he is fully awake and responsive.

Correct Answer: C) Monitor the patient closely for potential re-sedation and provide supportive care.

Explanation: After Naloxone administration, patients may experience opioid withdrawal symptoms such as agitation and pain. The healthcare team should monitor the patient closely for potential re-sedation, as Naloxone’s effects may wear off before the opioid has fully metabolized. Supportive care is essential to manage withdrawal symptoms and ensure the patient remains stable.

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Case: A 60-year-old male with a history of depression and chronic pain presents to the emergency department with severe agitation, tremors, and confusion. He has been taking phenelzine, a monoamine oxidase inhibitor (MAOI), for depression, and was recently prescribed an opioid for his chronic back pain. His family reports that his symptoms started shortly after he began the opioid medication.

Question 1: What is the most likely cause of the patient’s symptoms?

A) Serotonin syndrome
B) Opioid overdose
C) Hypertensive crisis
D) Neuroleptic malignant syndrome
E) Acute opioid withdrawal

Correct Answer:
A) Serotonin syndrome

Explanation:
The patient’s symptoms are most consistent with serotonin syndrome, a potentially life-threatening condition that can occur when opioids, particularly those with serotonergic properties (e.g., meperidine, tramadol, or fentanyl), are used in conjunction with MAO inhibitors like phenelzine. This combination can lead to an excess of serotonin in the brain, resulting in symptoms such as agitation, tremors, hyperreflexia, and confusion. Immediate medical attention and discontinuation of the offending agents are required.

Question 2: Which of the following is the most appropriate next step in the management of this patient?

A) Administer naloxone to reverse opioid effects
B) Discontinue both the opioid and MAOI immediately
C) Administer benzodiazepines to control agitation
D) Begin antihypertensive therapy
E) Initiate cooling measures to manage hyperthermia

Correct Answer:
B) Discontinue both the opioid and MAOI immediately

Explanation:
The first step in treating serotonin syndrome is to discontinue all serotonergic agents immediately. In this case, both the opioid and the MAOI should be stopped to prevent further exacerbation of symptoms. Additional supportive measures, including sedation with benzodiazepines and possibly cooling measures, may be necessary, but the priority is to remove the offending agents.

Question 3: Which of the following opioids would have been the safest choice to avoid this adverse reaction?

A) Meperidine
B) Tramadol
C) Fentanyl
D) Morphine
E) Hydrocodone

Correct Answer:
D) Morphine

Explanation:
Morphine is a safer option in this scenario because it does not have significant serotonergic activity, reducing the risk of serotonin syndrome when used in conjunction with an MAOI. Opioids like meperidine, tramadol, and fentanyl have serotonergic properties and are more likely to cause serotonin syndrome when combined with MAOIs.

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Case: A 52-year-old male patient with a history of chronic pain due to osteoarthritis presents to the pharmacy with a prescription for hydromorphone, a strong opioid. The patient mentions that he had a severe allergic reaction to morphine in the past, including hives and difficulty breathing. He is concerned about taking hydromorphone due to this past experience.

Question: What should the pharmacist do in this situation?

A) Dispense the hydromorphone as prescribed
B) Recommend the patient take an antihistamine with the first dose of hydromorphone
C) Contact the prescriber to discuss the patient’s allergy and request an alternative medication
D) Advise the patient to take the hydromorphone with food to reduce the risk of nausea
E) Suggest a lower starting dose and monitor the patient closely for any allergic reactions

Correct Answer:
C) Contact the prescriber to discuss the patient’s allergy and request an alternative medication

Explanation:
Given the patient’s history of a severe allergic reaction to morphine, it is important to contact the prescriber to discuss the allergy before dispensing hydromorphone. Although hydromorphone is a different opioid, cross-reactivity between opioids can occur, and the prescriber should be made aware of the allergy to consider a safer alternative.

Follow-Up Question 1: Which of the following opioids would be the least likely to cause an allergic reaction in this patient?

A) Fentanyl
B) Codeine
C) Oxycodone
D) Tramadol
E) Meperidine

Correct Answer:
A) Fentanyl

Explanation:
Fentanyl is a synthetic opioid with a different chemical structure from morphine and is less likely to cause an allergic reaction in patients with a known morphine allergy. Meperidine is also less likely to cross-react, but fentanyl is generally preferred due to its safety profile and potency. Fentanyl patch would be preferred.

Follow-Up Question 2: If the patient develops signs of an opioid allergy after taking a different opioid, what should be the pharmacist’s immediate course of action?

A) Advise the patient to discontinue the medication and take an antihistamine
B) Instruct the patient to continue taking the medication at a lower dose
C) Suggest switching to a non-opioid pain reliever
D) Instruct the patient to seek immediate medical attention
E) Contact the prescriber to report the reaction and request a different opioid

Correct Answer:
D) Instruct the patient to seek immediate medical attention

Explanation:
If a patient develops signs of an opioid allergy, such as hives, swelling, or difficulty breathing, the priority is to seek immediate medical attention. Allergic reactions can escalate rapidly, and timely intervention is crucial. The pharmacist should advise the patient to stop taking the medication and get emergency help right away.

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*** End of Chapter ***