Flashcards in meningitis Deck (26):
What causes infection and inflammation in the brain and CNS?
Bacteria, parasites, toxins, viruses
Is meningitis contagious?
How do the microorganisms reach the brain?
blood, extension via nearby tissues, direct assess of wound
why does the infection spread rapidly?
b/c of the flow of CSF and continuous membranes covering the brain
Inflammation response to infection causes what
Increase in ICP
what happens to the pia and archanoid matter?
what kind of meningitis do children and young adults get?
what are some traits of meningococcus?
carried in the nasoopharynx, spread by droplets, common epidemics in schools, late winter/early spring
what kind of meningitis is common in neonates?
What are some traits of escherichia coli?
most common causative organism, usually seen in conjunction with difficult deliveries(PROM) and w/neural tube deficits
What kind of meningitis is common in young children
Haemophilus Influenza, common in the fall and winter
What kind of menigitis affects elders and young children?
Streptococcus pneumonia(most common)
Can meningitis occur secondary to other infections, surgeries or head trauma?
What can viral meningitis result from?
Mumps and measles, usually more mild symptoms then bacterial meningitis
What is the classic triad for meningitis?
stiff neck, altered mental state, and high fever
what are some diagnostic tests?
CSF fluid(cloudy and increase in leukocytes), blood and CSF cultures, CT and MRI
What is the TX on these patients?
antibiotics(bacterial), antivirals, some vaccinations, steroids can decrease inflammation but will decrease immune system.
What is encephalitis?
Inflammation of the brain caused by an acute febrile illness or infection and usually is viral
What will sometimes happen in encephalitis?
Infection of the meninges may occur following vaccination with live virus (measles, mumps, rubella)
What usually happens in encephalitis?
Necrosis and inflammation development in brain tissue and often results in permanent damage.
What are some signs and symptoms of ENCEP?
sever headache, stiff neck, lethargy, vommiting, seizures, photophobia, fever
what is western equine encephalitis?
arboviral infection, spread from mosquitoes, most common in summer and in young children
what is west nile fever?
flavovirus, spread by mosquitoes
what is Neuroborreliosis (Lyme Disease)
caused by spirochete, borrelia burgdorferi
What is herpes simplex encephalitis
dangerous, occurs occasionally, (HSV-1) from trigeminal nerve ganglion, early TX with antiviral drug (acyclovir) may control infection.