You are caring for an elderly patient who sustained a head injury earlier today. She seems be acting confused. The patient's family members say that she is usually confused at baseline at home as well. However, you as the RN are still concerned about which of the following with this patient?

A. Distended neck veins is correct because during the oliguric phase of AKI, the kidneys are unable to excrete adequate amounts of fluid. This leads to volume overload, which increases central venous pressure. One of the most visible signs of this is jugular venous distension (JVD), indicating that the heart is under increased preload stress due to retained fluid. This can also be an early indicator of potential complications such as pulmonary congestion or heart failure.

B. Hypotension is incorrect because fluid overload usually results in hypertension, not hypotension. Blood pressure rises as the circulating volume increases, which can further compromise kidney function and exacerbate cardiac stress. Hypotension is more characteristic of pre-renal AKI, which is often caused by hypovolemia or decreased perfusion to the kidneys.

C. Edema is correct because impaired renal excretion during the oliguric phase causes fluid retention, leading to accumulation in the interstitial spaces. This is commonly observed as peripheral edemain the legs and feet, sacral edemain bedridden patients, and in severe cases, pulmonary edema, which can present with dyspnea and crackles on auscultation. Edema is a hallmark clinical finding in patients with AKI and fluid overload.

D. Fever is incorrect because it is not a direct symptom of fluid overload. While fever may occur if there is a concurrent infection (which can contribute to AKI), it is not a defining characteristic of the oliguric phase.

A. BP of 90/65 is incorrect because blood pressure is a vital sign that can be influenced by many systemic factors. While hypotension or hypertension may affect cerebral perfusion, it is not the most reliable indicator of neurological status.

B. Cranial nerve testing is incorrect because cranial nerve assessment provides useful information about specific neurological functions, but it does not give a global view of the patient’s overall neurological status.

C. PERRLA (pupils equal, round, reactive to light and accommodation) is incorrect because pupil response is an important component of neurological assessment, but changes can be delayed or affected by medications, eye trauma, or other factors. It does not reflect overall brain function as reliably as level of consciousness.

D. Change in level of consciousness is correct because level of consciousness is the most sensitive and reliable indicator of neurological status. Alterations in consciousness often precede other signs of neurological deterioration, making it a key parameter in assessing patients with increased intracranial pressure or other acute neurological conditions. Nurses use tools like the Glasgow Coma Scale to quantify changes in consciousness and detect early deterioration.