In a patient who presented with signs of meningitis? What should you do first? LP first or cefotaxime first? I came across multiple answers on this topic. 1. Some say start antibiotic first...we shouldn't wait. 2. Some say we should do an LP first b4 we start antibiotic, so we wouldn't affect the CSF result. 3. Some say we should do a CT or MRI to rule tumor b4 starting LP. So which one is right now?