Chemical Dependency Counselor License Pharmacology of Substance Use Questions and Answers

Question 1

A client with alcohol use disorder is prescribed disulfiram.
The counselor should educate the client that if they consume alcohol, they will likely experience a highly unpleasant reaction.
What is the pharmacological mechanism responsible for this effect?

Accepted Answer

It inhibits the enzyme aldehyde dehydrogenase, causing a toxic buildup of acetaldehyde.

Answer

It enhances the euphoric effects of alcohol, leading to overdose.

Answer

It blocks opioid receptors, reducing the reinforcing properties of alcohol.

Answer

It modulates glutamate and GABA neurotransmitter systems to reduce cravings.

Question 2

A client is being treated for opioid use disorder with buprenorphine. Which of the following statements BEST describes the primary action of this medication?

Accepted Answer

It is a partial opioid agonist that binds to opioid receptors but produces a less potent effect and has a 'ceiling effect'.

Answer

It is a full opioid agonist that completely activates opioid receptors, similar to methadone.

Answer

It is an opioid antagonist that completely blocks the effects of all opioids at the receptor site.

Answer

It is a non-opioid medication that works by reducing anxiety and insomnia associated with withdrawal.

Question 3

Naltrexone is an FDA-approved medication for both alcohol use disorder and opioid use disorder. Its mechanism of action involves:

Accepted Answer

Blocking the euphoric and reinforcing effects of the substance at the opioid receptor.

Answer

Creating an aversive reaction to the substance of use.

Answer

Substituting the abused drug with a less potent, longer-acting agonist.

Answer

Restoring the balance between excitatory and inhibitory neurotransmitters in the brain.

Question 4

A client who has been taking high doses of a short-acting benzodiazepine for several months decides to stop abruptly. The counselor should be aware that the client is at significant risk for which of the following?

Accepted Answer

A severe withdrawal syndrome that can include seizures.

Answer

A mild rebound anxiety and temporary insomnia.

Answer

An intense but brief period of euphoria followed by a crash.

Answer

A gradual decrease in tolerance with no significant physical symptoms.

Question 5

Which of the following best explains how stimulant drugs like cocaine and amphetamines produce their intensely reinforcing and euphoric effects?

Accepted Answer

They block the reuptake of dopamine in the brain's reward pathways, leading to a surplus of dopamine.

Answer

They primarily increase the activity of the inhibitory neurotransmitter GABA.

Answer

They mimic the effects of endogenous opioids, leading to pain relief and sedation.

Answer

They cause a severe aversive reaction by inhibiting a key metabolic enzyme.

Question 6

A client with alcohol use disorder is prescribed acamprosate. The primary therapeutic goal of this medication is to:

Accepted Answer

Reduce the uncomfortable symptoms of protracted withdrawal, such as anxiety and restlessness.

Answer

Produce a severe physical illness if the client drinks alcohol.

Answer

Block the pleasurable effects of alcohol to extinguish the desire to drink.

Answer

Act as a substitute for alcohol by providing a similar calming effect.

A client with alcohol use disorder is prescribed disulfiram.The counselor should educate the client that if they consume alcohol, they will likely experience a highly unpleasant reaction.What is the pharmacological mechanism responsible for this effect?

A client with alcohol use disorder is prescribed disulfiram.
The counselor should educate the client that if they consume alcohol, they will likely experience a highly unpleasant reaction.
What is the pharmacological mechanism responsible for this effect?