Meningitis and brain abscess 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 53-year-old man presents to the emergency department for evaluation of headache. For the past two weeks, the patient has experienced a gradually intensifying, constant headache with associated light sensitivity and neck stiffness. The patient has a medical history significant for HIV, and he has been non-adherent with antiretroviral agents. On review of systems, the patient has had intermittent fever and cough. The patient does not currently take any medications. Temperature is 39.0°C (102.2°F), pulse is 110/min, respirations are 22/min, and blood pressure is 130/85 mmHg. On physical examination, the patient is squinting and resisting passive movement of the neck. With forward flexion of the neck, the hips flex bilaterally. A lumbar puncture is performed; results are shown below. Which of the following is the most likely causative organism in this patient’s condition?

 Cerebrospinal fluid (CSF) analysis Result 
 Appearance Clear
 Glucose 60 mg/dL
 Protein 70 mg/dL
 White blood cell count 450/microL
 Red blood cell count 0/microL
 Opening pressure 30 cmH2O
 India ink stain Positive
 Acid-fast stain Negative

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