A urine test is positive for cannabis in a patient who says the last use was several days ago. Which interpretation is correct?
Correct answer: B. The result confirms cannabis exposure but not current impairment
- A. The result proves current impairment
- B. The result confirms cannabis exposure but not current impairment
- C. The result proves the patient used cannabis in the hospital
- D. The result confirms a cannabis overdose
Explanation
Cannabis metabolites can remain detectable after the impairing effects have ended, especially with repeated use. A positive urine result shows exposure, but it cannot reliably establish the exact time of use or current level of impairment.
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About Substance Use Disorders
Substance use disorders cover problematic use, intoxication, tolerance, dependence, withdrawal, and the effects of alcohol, opioids, sedatives, stimulants, cannabis, and other substances. The topic includes assessment, overdose and withdrawal management, detoxification, motivational interviewing, relapse prevention, and the difference between physical dependence and addiction.
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