Toxicology

For each of the following patients, select the most likely drug:

1. A 23-year-old man with a history of intravenous drug usage is obtunded and has severe respiratory depression, but improves markedly upon administration of naloxone:

2. The legal limit, over which a DUI (driving under the influence) conviction will follow, in most states in the U.S. is 0.08 gm% and 0.05 gm% in many European countries:

3. A week after a negative drug screen for this substance, a 22-year-old man has a weakly positive test, even though he has abstained from its use:

4. A 48-year-old man, treated for depression, has cardiac arrhythmias:

5. This metabolite is detected in the urine of a man arrested by the police while he was in a state of excited delerium:

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A. Acetaminophen B. Amphetamine C. Benzodiazepine D. Benzoylecgonine E. Cannabinoids
F. Chloral hydrate G. Cocaine H. Ephedrine I. Ethanol J. Ferrous sulfate
K. Lead L. Meprobamate M. Methanol N. Methaqualone O. Nortriptylene
P. Opiates Q. Phencyclidine R. Phenobarbital S. Propoxyphene T. Salicylate
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