NCLEX RN Free Practice Questions Related

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Morphine sulfate 4 mg IV push q2h prn for chest pain was ordered for a client in the emergency room with severe chest pain. The nurse administering the morphine sulfate knows which of the following therapeutic actions is related to the morphine sulfate?

  • A. Increased level of consciousness
  • B. Increased rate and depth of respirations
  • C. Increased peripheral vasodilation
  • D. Increased perception of pain
Correct Answer: C

Rationale: Morphine sulfate, a narcotic analgesic, causes sedation and a decrease in level of consciousness. The side effects of morphine sulfate include respiratory depression. Morphine sulfate causes peripheral vasodilation, which decreases afterload, producing a decrease in the myocardial workload. Morphine sulfate alters the perception of pain through an unclear mechanism. This alteration promotes pain relief.