A nurse is monitoring an older adult female client who had a myocardial infarction (MI) for the development of an acute kidney injury (AKI). Which of the following findings should the nurse identify as indicating an increased risk of AKI?

Choice A: Drainage of clear fluid from the ears is not an expected finding for a client who has an epidural hematoma, but rather a sign of a basilar skull fracture, which is a different type of head injury. The clear fluid is cerebrospinal fluid (CSF), which leaks from the brain through the fractured skull.

Choice B: Alternating periods of alertness and unconsciousness is an expected finding for a client who has an epidural hematoma, because it indicates a rapid increase in intracranial pressure (ICP) due to bleeding between the dura mater and the skull. The client may have a brief loss of consciousness at the time of injury, followed by a lucid interval, and then a rapid deterioration of mental status.

Choice C: Narrowing pulse pressure is not an expected finding for a client who has an epidural hematoma, but rather a sign of increased ICP due to any cause. Pulse pressure is the difference between systolic and diastolic blood pressure. As ICP rises, it compresses the brainstem and causes bradycardia and hypertension, resulting in a decreased pulse pressure.

Choice D: Extensive bruising in the mastoid area is not an expected finding for a client who has an epidural hematoma, but rather a sign of a basilar skull fracture, which is a different type of head injury. The bruising is also known as Batle's sign, and it occurs due to blood pooling behind the ear.

Choice A Reason: This choice is incorrect because it reflects the nurse's feelings rather than focusing on the client's needs. Saying "That's a hurtful thing to say" may make the client feel guilty or defensive, and it does not address the underlying cause of the client's anger or frustration.

Choice B Reason: This choice is incorrect because it sounds accusatory and confrontational rather than empathetic and supportive. Asking "Why would you say such a thing?" may make the client feel judged or criticized, and it does not explore the client's feelings or concerns.

Choice C Reason: This choice is incorrect because it dismisses the client's feelings rather than acknowledging them. Saying "Well, that's your opinion" may make the client feel ignored or invalidated, and it does not show respect or compassion for the client.

Choice D Reason: This choice is correct because it invites the client to express their feelings and concerns rather than shutting them down. Saying "Tell me more about that" may make the client feel heard and understood, and it may help to identify the source of their anger or frustration. The nurse can then use therapeutic communication skills such as active listening, reflecting, clarifying, or validating to establish rapport and trust with the client.