In craniocerebral trauma, lumbar puncture is essential in only one of the following

(D) When meningitis is suspected # BACTERIAL MENINGITIS, although potentially a life-threatening infection, seldom requires neurosurgical intervention.> Treatment involves confirming diagnosis & identifying organism by a CSF sample, usually via lumbar puncture.> Broad-spectrum intravenous (i.v.) antibiotics with good CSF penetration should then be commenced without delay.> Ceftriaxone 2g 12 hourly & metronidazole 400 mg 8 hourly & adjusted as cultures & sensitivities become available.