Which symptoms are commonly seen in bacterial meningitis?

Choice A rationale Photophobia, or an extreme sensitivity to light, is a common symptom in meningitis, resulting from the meningeal irritation and inflammation caused by the bacterial infection. The meninges, the protective layers covering the brain and spinal cord, contain pain-sensitive fibers. When inflammation reaches the optic nerve pathways or specific cranial nerves, light perception becomes a painful stimulus. Choice B rationale A petechial or purpuric rash is a critical and potentially ominous finding, especially in meningococcemia (caused by Neisseria meningitidis). The rash is caused by endothelial damage and vasculitis as the bacteria and inflammatory mediators enter the bloodstream, leading to small, non-blanching hemorrhages beneath the skin due to capillary leakage and microthrombi formation. Choice C rationale Nuchal rigidity (stiffness of the neck), a classic sign, is caused by inflammation of the meninges surrounding the cervical spinal cord. Attempting to flex the neck stretches the irritated meninges, eliciting pain and muscle spasm. This rigidity is often assessed using maneuvers like Brudzinski's or Kernig's signs, indicating meningeal irritation. Choice D rationale A high-pitched cry is more commonly associated with increased intracranial pressure (ICP), which can be a complication of severe meningitis, particularly in infants due to hydrocephalus or cerebral edema. While a sign of neurological distress, it is a less direct or specific initial symptom compared to the direct signs of meningeal irritation or systemic infection. Choice E rationale Seizures are a frequent complication, particularly in infants and young children with bacterial meningitis. They result from the direct inflammatory irritation of the cerebral cortex by the infectious process, cerebral edema, or vascular changes (e.g., thrombosis, infarcts) associated with severe intracranial infection, causing abnormal electrical activity.