A patient has a normal corneal light reflex. The nurse recognizes that this reflex indicates which information about the eyes?

Choice A reason: The American Cancer Society recommends PSA screening starting at age 50 for average-risk men, but at age 45 for higher-risk groups, including Asian men. This patient patient, as Asian, Asian, needs earlier screening, so age 50 is incorrect for this demographic.

Choice B reason: Starting screening at age 40 is not standard for an average-risk Asian male without symptoms. The ACS suggests age 45 for Asian men, so recommending it with this visit is premature and incorrect.

Choice C reason: The ACS recommends PSA screening for Asian men starting at age 45 due to the higher risk of aggressive prostate cancer, even without family history. This aligns with the patient’s profile, making it the correct teaching point.

Choice D reason: PSA screening is recommended for higher-risk groups like Asian men at age 45, regardless of family history. Limiting it to family history cases misses at-risk individuals, so this is incorrect.

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.