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Psychiatry

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Pchycoactive Substance Use Disprder

Question
6 out of 39
 

Two policeman pullover the driver of a car a 20-year old man, for speeding. They immediately notice a strong smell of alcohol on his breath and administer a Breathalyzer test. According to the instrument, the man’s blood alcohol level is 200mg/dl, but he does not show any typical signs of intoxication. His gait is stedy, his speech is clear. What is the most likely explanation for such presensation ? (AIIMS Nov 2009)



A The Breathalyzer is defective.

B A value of 200mg/Dl is below the intoxication level

C The man has developed a tolerance to the effect of alcohol

D The man has alocohol dependence

Ans. C The man has developed a tolerance to the effect of alcohol

a. After prolonged use, most drugs of abuse (and some medications) produce adaptive changes in the brain that are manifested by a markedly diminished responsiveness to the effects of the substance that has been administered over time, a phenomenon called tolerance.

b. Anyone who does not show signs of intoxication with an alcohol level of 150 mg/dL has developed a considerable tolerance.

Pchycoactive Substance Use Disprder Flashcard List

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