c) Assessing pain management response.
This is the correct answer because it is the most important and relevant action that the PN should do for a postoperative patient with a PCA machine. A PCA machine is a computerized device that allows the patient to self-administer a preset dose of pain medication, usually an opioid, by pressing a buton. The PCA machine is atached to an intravenous (IV) line that delivers the medication directly into the bloodstream. The PCA machine can provide effective and individualized pain relief for postoperative patients, as well as increase their sense of control and satisfaction¹².
The PN should assess the pain management response of the postoperative patient with a PCA machine by monitoring their pain level, vital signs, oxygen saturation, sedation level, and side effects. The PN should use a valid and reliable pain scale, such as the numeric rating scale (NRS) or the visual analog scale (VAS), to measure the patient's pain intensity and relief. The PN should also check the settings and functioning of the PCA machine, such as the dose, lockout interval, and limit. The PN should document and report the patient's pain management response and any problems or complications with the PCA machine to the health care provider.
a) Coffee ground secretions drainage via nasogastric tube.
This is not the correct answer because it is not a priority action that the PN should do for a postoperative patient with a PCA machine. Coffee ground secretions are dark brown or black granular material that are drained from the stomach via a nasogastric tube. They indicate bleeding in the upper gastrointestinal tract, such as from an ulcer, gastritis, or esophageal varices. Coffee ground secretions are a serious sign that require immediate atention and treatment³. However, they are not directly related to the use of a PCA machine or postoperative pain management. The PN should monitor the nasogastric tube drainage of the postoperative patient and report any coffee ground secretions to the health care provider, but this is not a priority action for a patient with a PCA machine.
b) Nasogastric tube suctioning.
This is not the correct answer because it is not a priority action that the PN should do for a postoperative patient with a PCA machine. Nasogastric tube suctioning is a procedure that involves applying negative pressure to a nasogastric tube to remove gastric contents from the stomach. It can be used to decompress the stomach, prevent vomiting or aspiration, or treat gastrointestinal bleeding or obstruction⁴. However, it is not directly related to the use of a PCA machine or postoperative pain management. The PN should perform nasogastric tube suctioning as ordered by the health care provider and according to protocol, but this is not a priority action for a patient with a PCA machine.

d) Ineffective pain management report.
This is not the correct answer because it is not an action that the PN should do for a postoperative patient with a PCA machine. Ineffective pain management report is an outcome or evaluation that indicates that the patient's pain is not adequately controlled or relieved by the current treatment plan. It may be caused by various factors, such as inadequate dosing, inappropriate medication choice, poor adherence, tolerance, or side effects⁵. However, it is not an action that the PN can implement or perform for a postoperative patient with a PCA machine. The PN should assess and document the patient's pain management response and report any ineffective pain management to the health care provider, but this is not an action for a patient with a PCA machine.

Choice A rationale:

Providing information about the client's healthcare power of attorney is not the most critical piece of information to report in this situation. The immediate concern is the client's change in mental status and potential medical emergency.

Choice B rationale:

While the reason for the client's admission is important background information, it is not the most urgent information to report in this situation. The priority is addressing the client's acute change in mental status.

Choice C rationale:

The nurse should be aware of the client's currently prescribed medications, but this information does not take precedence over the client's sudden onset of confusion and agitation. Immediate action is needed to address the client's altered mental status.

Choice D rationale:

Increasing confusion and agitation in a client who recently underwent ORIF of the right femur is a significant change in condition and may indicate a medical emergency such as infection, delirium, or other complications. This information should be provided first to alert the healthcare provider to the client's immediate needs.