What should the nurse do when assessing the carotid arteries of an older patient with cardiovascular disease?

Choice A reason: Normal pupil findings include equal size (2–5 mm) and brisk reaction to light bilaterally. A fully dilated, nonreactive right pupil with a reactive left pupil indicates a neurological abnormality, not a normal finding, as it suggests significant brain dysfunction.

Choice B reason: Rechecking findings is prudent, but the described pupil changes—unilateral dilation and nonreactivity—are classic signs of a serious condition. Delaying action by only rechecking could miss critical intervention timing, as these findings strongly indicate a neurological emergency.

Choice C reason: A unilaterally dilated, nonreactive pupil with a normal contralateral pupil suggests increased intracranial pressure, often from a hematoma or swelling compressing the oculomotor nerve (Cranial Nerve III). This causes pupil dilation and loss of light reflex, requiring urgent intervention.

Choice D reason: Brainstem injury typically causes bilateral pupil changes, such as fixed, pinpoint, or dilated pupils, due to damage to brainstem nuclei. The unilateral findings here are more indicative of focal pressure (e.g., hematoma) than diffuse brainstem injury, making this less likely.

Choice A reason: The Brief Pain Inventory relies on verbal or cognitive input, which is unreliable in advanced dementia due to impaired communication and cognition. Patients may not articulate pain, making this tool ineffective for assessing pain in this population.

Choice B reason: Observing body language, like pacing or agitation, is a valid pain indicator in advanced dementia. These nonverbal behaviors reflect discomfort processed by intact pain pathways, despite cognitive decline, making this a reliable assessment method.

Choice C reason: Noting vocalizations like groaning or crying is effective, as these are instinctive responses to pain, even in advanced dementia. These behaviors bypass cognitive deficits, reflecting pain perception in the brain’s nociceptive pathways, making this a correct choice.

Choice D reason: Assessing breathing changes, like rapid or irregular patterns, is a reliable nonverbal pain indicator in dementia. Pain can stimulate the autonomic nervous system, altering respiration independently of vocalization, making this a valid assessment technique.

Choice E reason: A 1-to-10 pain scale requires cognitive ability to quantify and communicate pain, which is impaired in advanced dementia. This method is unreliable, as patients cannot reliably report, making it an incorrect choice for this population.