Barbiturates are best described as what?

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Prepare for the Certified Addictions Registered Nurse (CARN) Advanced Practice Test. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Boost your readiness for the exam!

Multiple Choice

Barbiturates are best described as what?

Explanation:
Barbiturates are CNS depressants. They enhance inhibitory GABA activity in the brain, which slows neuronal firing to produce calmness, sleep, or anesthesia. This depressant effect also leads to impaired memory and judgment at modest to higher doses, along with risks like respiratory depression. That combination—reducing anxiety while dulling thinking and memory—fits best with the description of barbiturates. The other descriptions don’t match: barbiturates do not increase CNS activity (they dampen it), they do not mimic endorphins, and they do not block serotonin receptors.

Barbiturates are CNS depressants. They enhance inhibitory GABA activity in the brain, which slows neuronal firing to produce calmness, sleep, or anesthesia. This depressant effect also leads to impaired memory and judgment at modest to higher doses, along with risks like respiratory depression. That combination—reducing anxiety while dulling thinking and memory—fits best with the description of barbiturates.

The other descriptions don’t match: barbiturates do not increase CNS activity (they dampen it), they do not mimic endorphins, and they do not block serotonin receptors.

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