The provider has ordered intramuscular (IM) injections of morphine, a narcotic, every 4 hours as needed for pain in a motor vehicle accident victim.
The nurse is aware this drug has a high abuse potential.
Under what category would morphine be classified?
Schedule I.
Schedule III.
Schedule IV.
Schedule II.
The Correct Answer is D
Choice A rationale
Schedule I drugs have no medical use and high abuse potential, unlike morphine.
Choice B rationale
Schedule III drugs have less abuse potential than Schedule II, making this incorrect for morphine.
Choice C rationale
Schedule IV drugs have even lower abuse potential, incorrect for morphine.
Choice D rationale
Schedule II drugs have high abuse potential with medical use, fitting morphine's classification.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Schedule I drugs have no medical use and high abuse potential, unlike morphine.
Choice B rationale
Schedule III drugs have less abuse potential than Schedule II, making this incorrect for morphine.
Choice C rationale
Schedule IV drugs have even lower abuse potential, incorrect for morphine.
Choice D rationale
Schedule II drugs have high abuse potential with medical use, fitting morphine's classification.
Correct Answer is B
Explanation
Choice A rationale
Beta-adrenergic blockers generally do not decrease urinary output. These drugs primarily act on the cardiovascular system by blocking beta-adrenergic receptors, which results in lowered heart rate and blood pressure. Their effects are less pronounced on the renal system unless specific agents with renal effects are used.
Choice B rationale
Beta-adrenergic blockers decrease the strength of heart muscle contraction (negative inotropic effect). By blocking beta receptors, they inhibit the stimulatory effects of catecholamines on the heart, reducing the force of myocardial contraction, which helps decrease oxygen demand and control angina symptoms.
Choice C rationale
Beta-adrenergic blockers typically decrease heart rate (negative chronotropic effect) rather than increase it. They inhibit beta-adrenergic receptors, which leads to a slower heart rate and can help manage conditions like angina by reducing myocardial oxygen consumption.
Choice D rationale
Beta-adrenergic blockers decrease oxygen consumption by reducing heart rate and the force of contraction. These effects lower myocardial oxygen demand, which is beneficial for patients with angina by preventing episodes triggered by increased oxygen needs.
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