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
Magnesium plays a role in various cellular functions, including enzyme activity and muscle contraction, but it does not directly inactivate troponin to enable actin and myosin interaction.
Choice B rationale
Sodium is essential for action potential generation and nerve impulse transmission but does not directly influence troponin activity or muscle contraction through actin and myosin bridge formation.
Choice C rationale
Potassium is critical for maintaining cellular resting membrane potential and repolarization of cells but does not play a direct role in inactivating troponin to facilitate muscle contraction.
Choice D rationale
Calcium is the electrolyte that inactivates troponin, allowing actin and myosin to form cross-bridges and contract muscle fibers. Calcium binds to troponin, causing a conformational change that exposes binding sites for myosin on actin filaments.
Correct Answer is B
Explanation
Choice A rationale
Administering a non-steroidal anti-inflammatory drug (NSAID) is not a priority action for a patient who has received a narcotic analgesic. The priority should be to ensure the patient’s safety and prevent falls, which can occur due to the sedative effects of narcotics.
Choice B rationale
Putting side rails up and placing the bed in the lowest position is essential for patient safety. Narcotics can cause dizziness, drowsiness, and impaired coordination, increasing the risk of falls. Ensuring the bed is in the lowest position and side rails are up helps prevent injury if the patient tries to get up.
Choice C rationale
Encouraging fluids is beneficial for many patients, but it is not the priority action when a patient has received a narcotic analgesic. Hydration is important but secondary to ensuring the patient’s immediate safety.
Choice D rationale
Creating a restful, dark environment may help the patient rest, but it does not directly address the immediate safety needs of a patient who has received a narcotic analgesic. The focus should be on preventing falls and injury.
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