A 70-year-old patient presents with confusion, fever, neck stiffness, and Kernig's sign

A 70-year-old patient presents with confusion, fever, neck stiffness, and Kernig's sign

A 70-year-old patient presents with confusion, fever, neck stiffness, and Kernig's sign. What is the most likely diagnosis?

A. Encephalitis

B. Meningitis

C. Stroke

D. Dementia

Answer: B

Explanation: Fever, neck stiffness, Kernig's/Brudzinski's sign, and altered mental status are classic for acute meningitis.