Alcohol and Drug Counselor Pharmacology of Psychoactive Substances Questions and Answers

Question 1

A client who has been taking high doses of alprazolam (Xanax) for several months without a prescription expresses a desire to quit 'cold turkey.' What is the most significant life-threatening risk associated with abrupt cessation of this substance?

Accepted Answer

Seizures and delirium

Answer

Severe depression and suicidality

Answer

Intense flu-like symptoms

Answer

Hypertensive crisis

Question 2

Opioids, such as heroin and fentanyl, primarily produce their analgesic and euphoric effects by binding to and activating which type of neurotransmitter receptors in the brain?

Accepted Answer

Mu-opioid receptors

Answer

Dopamine D2 receptors

Answer

Serotonin 5-HT2A receptors

Answer

GABA-A receptors

Question 3

Which of the following statements BEST explains the clinical significance of a drug's half-life for an alcohol and drug counselor?

Accepted Answer

It helps predict the duration and intensity of withdrawal symptoms.

Answer

It determines the peak psychoactive effect of the substance.

Answer

It indicates the likelihood of a person developing a substance use disorder.

Answer

It measures the purity of an illicitly manufactured drug.

Question 4

A client receiving medication-assisted treatment (MAT) for opioid use disorder is prescribed buprenorphine. The client is confused about how it works. The counselor should explain that buprenorphine is a partial opioid agonist, which means it:

Accepted Answer

activates opioid receptors to a lesser degree than full agonists, reducing cravings and withdrawal without producing strong euphoria.

Answer

completely blocks the effects of other opioids but has no opioid effect itself.

Answer

produces a full opioid effect, similar to methadone, to prevent withdrawal.

Answer

reverses the effects of an opioid overdose in emergency situations.

Question 5

The phenomenon where chronic use of a drug in one classification, such as alcohol, leads to a reduced response to another drug in the same classification, such as a benzodiazepine, is known as:

Accepted Answer

Cross-tolerance

Answer

Reverse tolerance

Answer

Tachyphylaxis

Answer

Behavioral tolerance

Question 6

Which of the following routes of administration delivers a psychoactive substance to the brain most rapidly, thereby increasing its reinforcement potential and risk for addiction?

Accepted Answer

Intravenous (IV) injection

Answer

Oral ingestion

Answer

Intranasal insufflation (snorting)

Answer

Transdermal absorption