143.4 📌 章末速蚘

  • Triad: fever + headache + neck stiff (only 50%)
  • LP ASAP (CT first if focal deficit / immunocompromised / papilledema)
  • Empirical < 1 hr: Ceftri + Vanc + Dex; + Ampi if > 50
  • Bacterial CSF: PMN, low glucose, high protein
  • Viral CSF: lymphocytic, normal glucose
  • Listeria: > 50 / immunocompromised / alcoholic / pregnant
  • Meningococcal prophy: Cipro 1×, Rifampin 2d, Ceftri 1×
  • Dexamethasone: ✅ before/with antibiotic