A patient has fallen and injured her knee.
It is not fractured, but there is considerable swelling and pain.
She asks which over-the-counter analgesic would be best to take for her discomfort.
The nurse tells her that one with NSAID properties would be best.
Which would it be best to take?

Choice A rationale:
Patient-controlled analgesia (PCA) is a method of pain management that allows the patient to administer their own pain medication within specified limits, but it doesn't reduce the workload of the nurse. The nurse is responsible for setting up and monitoring the PCA pump, educating the patient, assessing their pain, and ensuring safety. Therefore, this choice is incorrect.
Choice B rationale:
PCA does not completely eliminate pain. It provides the patient with control over their pain relief by allowing them to self-administer medication within preset limits. However, it does not guarantee the complete absence of pain. Pain relief is provided within a safe dosage range, but some level of pain may still be experienced. Therefore, this choice is incorrect.
Choice C rationale:
PCA does not eliminate the risk of adverse drug effects entirely. The nurse must monitor the patient for signs of adverse effects, such as respiratory depression or sedation. While the patient has control over medication administration, there are still risks associated with opioid analgesics. Therefore, this choice is incorrect.
Choice D rationale:
The principal advantage of using patient-controlled analgesia (PCA) is that it reduces patient anxiety about pain by giving the patient more control over its management. This choice is correct because PCA empowers the patient to self-administer pain medication when needed, which can lead to better pain control and reduced anxiety. The nurse sets safe dosage limits and monitors the patient, ensuring safety while providing a sense of control.

Choice A rationale:
Magnesium is not typically considered a natural supplement that enhances sleep. While magnesium is an essential mineral for overall health, it is not commonly used as a sleep aid.
Choice B rationale:
Calcium is also not commonly used as a natural supplement to enhance sleep. While calcium is important for bone health and various physiological processes, it is not primarily associated with improving sleep.
Choice C rationale:
Oil of lavender is known for its calming and soothing properties, and it can have a relaxing effect. However, it is not as commonly used or as effective as melatonin for improving sleep. Lavender oil is more often used for its aromatherapy benefits.