A patient who is addicted to heroin is admitted to the hospital for treatment of an infection. The patient is prescribed methadone (Dolophine) as part of a detoxification program. What is the rationale for using methadone in this patient?
Methadone prevents withdrawal symptoms and reduces cravings for heroin.
Methadone blocks the euphoric effects of heroin and discourages its use.
Methadone stimulates opioid receptors and enhances natural pain relief.
Methadone reverses the respiratory depression caused by heroin overdose.
The Correct Answer is B
The correct answer is choice B. Methadone blocks the euphoric effects of heroin and discourages its use. Methadone is a synthetic opioid analgesic that produces a cross-tolerance to other narcotics, thereby preventing the user from feeling the high of heroin. Methadone also reduces withdrawal symptoms and cravings for heroin.
Choice A is wrong because methadone does not prevent withdrawal symptoms, but rather reduces them.
Choice C is wrong because methadone does not stimulate opioid receptors, but rather occupies them and blocks their activation by heroin.
Choice D is wrong because methadone does not reverse the respiratory depression caused by heroin overdose, but rather carries a risk of overdose itself.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B.Methadone blocks the euphoric effects of heroin and discourages its use.Methadone is a synthetic opioid analgesic that produces a cross-tolerance to other narcotics, thereby preventing the user from feeling the high of heroin.Methadone also reduces withdrawal symptoms and cravings for heroin.
Choice A is wrong because methadone does not prevent withdrawal symptoms, but rather reduces them.
Choice C is wrong because methadone does not stimulate opioid receptors, but rather occupies them and blocks their activation by heroin.
Choice D is wrong because methadone does not reverse the respiratory depression caused by heroin overdose, but rather carries a risk of overdose itself.
Correct Answer is ["A","B","C"]
Explanation
The correct answer is choice A, B, and C. These are all liver enzymes that can indicate hepatotoxicity (liver damage) from acetaminophen overdose.
The normal ranges for these enzymes are:
• AST: 10 to 40 U/L
• ALT: 7 to 56 U/L
• ALP: 45 to 115 U/L
Choice D and E are wrong because they are indicators of renal function, not liver function.
The normal ranges for these values are:
• BUN: 7 to 20 mg/dL
• Creatinine: 0.6 to 1.2 mg/dL
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