A nurse is caring for a patient who is postoperative following a total knee replacement. What action should the nurse take to prevent deep vein thrombophlebitis?

Rationale for Choice A: Obtain vital signs

While obtaining vital signs is important in assessing a patient's overall condition, it is not the first priority in a suspected transfusion reaction.

Vital signs can provide valuable information about the severity of the reaction, but they should not delay the immediate action of stopping the transfusion.

Delaying the cessation of the transfusion could allow for further infusion of incompatible blood or allergens, potentially worsening the reaction and leading to more serious complications.

Rationale for Choice B: Notify the registered nurse

Involving other healthcare professionals is crucial in managing transfusion reactions, but it should not precede stopping the transfusion.

The nurse should prioritize stopping the transfusion to prevent further exposure to potential triggers and then promptly notify the registered nurse for further assessment and interventions.

Timely communication with the registered nurse is essential for coordinating care and ensuring appropriate treatment measures are implemented.

Rationale for Choice C: Administer diphenhydramine

Diphenhydramine, an antihistamine, can be used to treat allergic reactions, but it should not be administered as the first response in this scenario.

The priority is to halt the infusion of the blood product that is potentially causing the reaction.

Administering diphenhydramine before stopping the transfusion could mask the symptoms of the reaction, making it more difficult to assess its severity and progression.

Rationale for Choice D: Stop the transfusion

This is the correct and most immediate action to take when a patient develops itching and hives during a blood transfusion.

These symptoms are indicative of a possible allergic or transfusion reaction, and stopping the transfusion is essential to prevent further complications.

It's critical to act quickly to minimize the amount of incompatible blood or allergens that enter the patient's circulation.

By stopping the transfusion, the nurse can potentially prevent the reaction from worsening and safeguard the patient's well- being.

Choice A rationale:

Naloxone does not have any direct effect on respiratory secretions. It works by binding to opioid receptors in the brain and reversing the effects of opioids, such as respiratory depression.

While opioids can cause a decrease in respiratory secretions, this is not the primary reason for administering naloxone.

It is important to note that naloxone can actually worsen respiratory secretions in some patients, particularly those with chronic obstructive pulmonary disease (COPD) or other respiratory conditions.

Choice B rationale:

Naloxone is a medication that is specifically designed to block the effects of opioids on the central nervous system (CNS).

It is a competitive antagonist, which means that it binds to opioid receptors in the brain and prevents opioids from binding to those receptors.

This can reverse the effects of opioids, such as respiratory depression, sedation, and hypotension.

Naloxone is often used to treat opioid overdose, but it can also be used to prevent opioid-induced respiratory depression in patients who are receiving opioids for pain relief.

Choice C rationale:

Naloxone is not effective in treating nausea.

In fact, it can actually worsen nausea in some patients.

This is because naloxone can block the effects of opioids in the brain, and opioids can sometimes have a nausea-relieving effect.

Choice D rationale:

Naloxone is not effective in treating urinary retention.

Urinary retention is a common side effect of opioids, but it is not caused by the effects of opioids on the CNS. Urinary retention is typically caused by the effects of opioids on the bladder muscles.