Which statement best defines substance intoxication?

Which statement best defines substance intoxication?

• A. A reversible syndrome of signs and symptoms following excessive substance use
• B. A temporary impairment of judgment and coordination caused by the substance
• C. A withdrawal syndrome occurring after cessation
• D. A chronic condition with escalating tolerance

Answer: (A)

Substance intoxication is a reversible syndrome of signs and symptoms that follows recent, excessive use of a substance, reflecting the acute effect of the drug on the central nervous system. This state often includes impaired judgment, slowed or uncoordinated movements, mood changes, and other cognitive or behavioral alterations, and it typically resolves as the substance is metabolized. The defining feature is reversibility with time and metabolism, distinguishing it from withdrawal (which occurs after stopping use) and from a chronic pattern of escalating tolerance and dependence.

Substance intoxication is a reversible syndrome of signs and symptoms that follows recent, excessive use of a substance, reflecting the acute effect of the drug on the central nervous system. This state often includes impaired judgment, slowed or uncoordinated movements, mood changes, and other cognitive or behavioral alterations, and it typically resolves as the substance is metabolized. The defining feature is reversibility with time and metabolism, distinguishing it from withdrawal (which occurs after stopping use) and from a chronic pattern of escalating tolerance and dependence.