CAADE Pharmacology of Substances 4

Question 1

MDMA (ecstasy) primarily produces its effects by massively releasing which neurotransmitter?

Accepted Answer

Serotonin (along with dopamine and norepinephrine)

Answer

MDMA causes massive release of serotonin, along with dopamine and norepinephrine, producing euphoria, empathy, and increased sociability.

Question 2

Which of the following is a major health risk specific to chronic inhalant abuse?

Accepted Answer

Sudden Sniffing Death Syndrome from cardiac arrhythmia

Answer

Sudden Sniffing Death Syndrome is a risk unique to inhalants, where cardiac sensitization to epinephrine causes fatal arrhythmia, even on first use.

Question 3

Which statement about drug half-life is most accurate for a substance abuse counselor to understand?

Accepted Answer

Half-life is the time required for the plasma concentration of a drug to decrease by 50%

Answer

Half-life is a pharmacokinetic measure of the time needed for drug plasma concentration to fall by half, which determines dosing frequency and detox timelines.

Question 4

A client who uses heroin also begins using alcohol heavily. This combination is especially dangerous because both are:

Accepted Answer

CNS depressants whose respiratory depression effects are synergistic

Answer

Opioids and alcohol are both CNS depressants that synergistically suppress respiration, dramatically increasing the risk of fatal overdose when combined.

Question 5

GHB (gamma-hydroxybutyrate) is particularly dangerous when combined with alcohol because it:

Accepted Answer

Has synergistic CNS depressant effects that can cause coma or death

Answer

GHB and alcohol are both CNS depressants, and their combination produces synergistic sedation that can rapidly lead to coma and respiratory failure.

(CAADE) California Association for Alcohol/Drug Educators Certification Practice Test

(CAADE) California Association for Alcohol/Drug Educators Certification Practice Test

CAADE Pharmacology of Substances 4