A natural supplement that can enhance sleep for many people is:.

Choice A rationale:

Oxymorphone is not an NSAID (Non-Steroidal Anti-Inflammatory Drug). It is an opioid analgesic, which is used for more severe pain relief. It is not suitable for managing swelling and pain caused by an injury.

Choice B rationale:

Ibuprofen is an NSAID and is an appropriate choice for managing pain and swelling associated with injuries like the patient's knee injury. NSAIDs work by reducing inflammation, which can help alleviate pain and discomfort in such cases.

Choice C rationale:

Acetaminophen is not an NSAID. It is classified as an analgesic and antipyretic, and while it can help with pain relief, it may not be as effective in reducing inflammation, which is essential in cases of swelling due to an injury.

Choice D rationale:

Aspirin is an NSAID, but it is not the best choice for this patient. Aspirin is known to have a higher risk of gastrointestinal side effects, and there are other NSAIDs like ibuprofen that are generally preferred for pain management and inflammation without the same level of side effects.

Choice A rationale:

Bradycardia, a slow heart rate, is not typically associated with acute pain. In response to pain, the body usually experiences increased heart rate (tachycardia) as part of the stress response.

Choice B rationale:

A decreased respiratory rate is not an expected finding in response to acute pain. Acute pain often leads to increased respiratory rate as the body attempts to manage the pain and stress.

Choice C rationale:

Hypoglycemia, a low blood sugar level, is not a typical physiological response to acute pain. Acute pain is more likely to induce a release of stress hormones, such as cortisol and adrenaline, which can lead to increased blood sugar levels.

Choice D rationale:

Hypertension, or elevated blood pressure, is an expected physiological response to acute pain. Pain activates the body's stress response, leading to increased sympathetic nervous system activity, which can cause vasoconstriction and increased blood pressure. This response helps prepare the body to cope with the pain and stress. Monitoring blood pressure in a client reporting acute pain is essential to assess the impact of pain and determine appropriate pain management strategies.