AND ANSWERS
What are the three main types of meningitis? - ANS Bacterial, viral (or aseptic), and
tuberculous
What are the bacterial forms of meningitis caused from? - ANS Pus forming bacteria
meningococci, pneumococci, and haemophilus
Menengitis may occur as a primary disease or....? - ANS As a result of complications from
neurosurgery, trauma, systemic infections and sinus or ear infections
About how many cases of meningitis are fatal? - ANS about 10%
Patho of Bacterial Meningitis once the pathogen enters the CNS - ANS Vascular
dissemination from an infection somewhere else, direct extension, direct implantation after
penetrating wounds, skill fractures, surgical procedures.
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Organisms spread into cerebral spinal fluid
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Spreads to subarachnoid space
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Inflammatory process occurs -- WBCs accumulate & cover the entire surface with thick, white
purulent exudates
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Brain becomes hyperemic and edematous
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, What happens after Brain becomes hyperemic and edematous? - ANS May spread to
ventricles and obstruction to flow of CSF - hydrocephalus
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Bacteria multiplies rapidly
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Infections spreads further into brain tissue
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Changes occur in permeability of capillaries and blood vessels of dura mater
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Passage of albumin and water into subdural space
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Intracranial pressure continues to increase
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Neorological sequela
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Hearing loss, seizures, mental retardation, visual impairment, behavioral problems
What is the "classic picture" of meningitis? - ANS High fever, headache and stiff neck
What are some other symptoms that may be present? - ANS Vomiting with headache
Seizure
Photophobia
Changes in level of consciousness
What are the clinical manifestations in children over 2 years old? - ANS Positive Kernig sign
Positive Brudzinski sign
Opisthotonos (late)
Petechial or purpuric rash (late)
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