What causes hangover-like symptoms when drinking while taking disulfiram?

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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

What causes hangover-like symptoms when drinking while taking disulfiram?

Explanation:
When disulfiram is taken, drinking alcohol triggers hangover-like symptoms because disulfiram inhibits aldehyde dehydrogenase, the enzyme that normally converts acetaldehyde into acetate. With ALDH blocked, acetaldehyde accumulates in the blood. This toxic buildup causes the characteristic reaction: facial flushing, rapid heart rate, sweating, nausea, vomiting, and overall malaise. The other ideas don’t explain this immediate, acetaldehyde-driven response—acetate isn’t driving the symptoms, glutamate excitotoxicity isn’t the typical mechanism here, and an increase in NAD+ doesn’t account for the specific disulfiram-alcohol reaction.

When disulfiram is taken, drinking alcohol triggers hangover-like symptoms because disulfiram inhibits aldehyde dehydrogenase, the enzyme that normally converts acetaldehyde into acetate. With ALDH blocked, acetaldehyde accumulates in the blood. This toxic buildup causes the characteristic reaction: facial flushing, rapid heart rate, sweating, nausea, vomiting, and overall malaise. The other ideas don’t explain this immediate, acetaldehyde-driven response—acetate isn’t driving the symptoms, glutamate excitotoxicity isn’t the typical mechanism here, and an increase in NAD+ doesn’t account for the specific disulfiram-alcohol reaction.

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