Approach to a red eye Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 68-year-old man presents to the urgent care clinic for evaluation of pain in the left eye and a rash on the nose. He has had a left sided headache for two days, and today, a painful rash appeared on the left forehead and nose accompanied by pain and redness of the left eye. He has not been exposed to any new materials nor has he experienced recent facial or head trauma. The patient reports recently recovering from COVID-19 but has no chronic medical conditions. Temperature is 37.0°C (98.6°F), pulse is 90/min, respiratory rate is 18/min, blood pressure is 136/82 mmHg, and oxygen saturation is 99% on room air. Vision is 20/20 in the right eye and 20/50 in the left. Examination of the eyes reveals bulbar conjunctival injection diffusely in the left eye with photosensitivity. Pupils are round and reactive to light, and extraocular muscles are intact bilaterally. Painful, vesicular lesions are noted at the tip of the nose. Which of the following tests would help confirm the diagnosis? 

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