Behavioral Medicine – Substance Use Disorders Practice Test

Inhalant intoxication is defined by the presence of two or more symptoms that develop during or shortly after exposure, reflecting the rapid CNS depressant effects of inhaled substances. Dizziness fits this pattern particularly well, because inhalants quickly impact brain function and balance, leading to lightheadedness and a sense of vertigo or unsteadiness. That acute, easily observable sign is a classic clue to intoxication.

Weight gain, on the other hand, is not an immediate or typical sign of acute inhalant intoxication; it reflects more long-term metabolic or health changes rather than the immediate CNS effects being measured. Blurred vision can occur with some inhalants but dizziness is a more consistently recognized symptom of the intoxication picture, making it the best choice among the options. Euphoria can occur with various drugs, but it’s not as specifically tied to the acute inhalant intoxication syndrome as dizziness is.