CDCA Pharmacology of Substances & Drug Effects

Question 1

Which neurotransmitter is most directly associated with the rewarding effects of alcohol and opioids in the brain's reward pathway?

Accepted Answer

Dopamine

Answer

Dopamine released in the nucleus accumbens (mesolimbic pathway) is the primary neurotransmitter responsible for the reinforcing/rewarding effects of alcohol and opioids.

Question 2

A client reports feeling euphoric, slowed breathing, and pinpoint pupils after using heroin. These effects are consistent with which drug classification?

Accepted Answer

CNS depressants/opioids

Answer

Pinpoint pupils (miosis), euphoria, and respiratory depression are classic signs of opioid intoxication, which is a CNS depressant drug class.

Question 3

Which of the following is a long-acting opioid agonist used in medication-assisted treatment (MAT) for opioid use disorder that requires daily clinic dispensing initially?

Accepted Answer

Methadone

Answer

Methadone is a long-acting full opioid agonist used in MAT that must be dispensed daily through licensed opioid treatment programs (OTPs) at the start of treatment.

Question 4

What is the primary pharmacological mechanism of alcohol (ethanol) in the brain?

Accepted Answer

Enhancing GABA and inhibiting NMDA glutamate receptors

Answer

Alcohol enhances inhibitory GABA activity and inhibits excitatory NMDA glutamate receptors, producing CNS depressant effects.

Question 5

A client who abruptly stops using benzodiazepines after prolonged heavy use is at greatest risk for which withdrawal complication?

Accepted Answer

Life-threatening seizures and delirium tremens

Answer

Benzodiazepine withdrawal (like alcohol withdrawal) can cause life-threatening seizures and delirium tremens due to rebound CNS excitability, requiring medical supervision.

(CDCA) Certified Chemical Dependency Counselor Assistant Practice Test

(CDCA) Certified Chemical Dependency Counselor Assistant Practice Test

CDCA Pharmacology of Substances & Drug Effects