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Psychiatry · Substance use: amphetamine psychosis
Sample itemA college student using methamphetamine develops paranoid delusions and hallucinations while fully alert. Which feature favours substance-induced psychosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Onset during intoxication that resolves after abstinence
Amphetamine psychosis resembles paranoid schizophrenia but usually follows heavy use, with visual and tactile hallucinations common, and it clears within days to weeks of abstinence. Dopamine excess is responsible.
Option by option
A. Negative symptoms only
Negative symptoms predominate in schizophrenia, not in amphetamine psychosis.
B. Gradual onset over years
A gradual onset over years suggests a primary psychosis.
C. Onset during intoxication that resolves after abstinence (correct)
Correct. Temporal relationship with use and resolution on abstinence.
D. Complete absence of any substance exposure
Substance use is required for the diagnosis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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