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Flashcards in meningitis Deck (26):
1

What causes infection and inflammation in the brain and CNS?

Bacteria, parasites, toxins, viruses

2

Is meningitis contagious?

VERY

3

How do the microorganisms reach the brain?

blood, extension via nearby tissues, direct assess of wound

4

why does the infection spread rapidly?

b/c of the flow of CSF and continuous membranes covering the brain

5

Inflammation response to infection causes what

Increase in ICP

6

what happens to the pia and archanoid matter?

Become edematous

7

what kind of meningitis do children and young adults get?

Meningococcus

8

what are some traits of meningococcus?

carried in the nasoopharynx, spread by droplets, common epidemics in schools, late winter/early spring

9

what kind of meningitis is common in neonates?

Escherichia Coli

10

What are some traits of escherichia coli?

most common causative organism, usually seen in conjunction with difficult deliveries(PROM) and w/neural tube deficits

11

What kind of meningitis is common in young children

Haemophilus Influenza, common in the fall and winter

12

What kind of menigitis affects elders and young children?

Streptococcus pneumonia(most common)

13

Can meningitis occur secondary to other infections, surgeries or head trauma?

Yes

14

What can viral meningitis result from?

Mumps and measles, usually more mild symptoms then bacterial meningitis

15

What is the classic triad for meningitis?

stiff neck, altered mental state, and high fever

16

what are some diagnostic tests?

CSF fluid(cloudy and increase in leukocytes), blood and CSF cultures, CT and MRI

17

What is the TX on these patients?

antibiotics(bacterial), antivirals, some vaccinations, steroids can decrease inflammation but will decrease immune system.

18

What is encephalitis?

Inflammation of the brain caused by an acute febrile illness or infection and usually is viral

19

What will sometimes happen in encephalitis?

Infection of the meninges may occur following vaccination with live virus (measles, mumps, rubella)

20

What usually happens in encephalitis?

Necrosis and inflammation development in brain tissue and often results in permanent damage.

21

What are some signs and symptoms of ENCEP?

sever headache, stiff neck, lethargy, vommiting, seizures, photophobia, fever

22

what is western equine encephalitis?

arboviral infection, spread from mosquitoes, most common in summer and in young children

23

what is west nile fever?

flavovirus, spread by mosquitoes

24

what is Neuroborreliosis (Lyme Disease)

caused by spirochete, borrelia burgdorferi

25

What is herpes simplex encephalitis

dangerous, occurs occasionally, (HSV-1) from trigeminal nerve ganglion, early TX with antiviral drug (acyclovir) may control infection.

26

what is the TX for encephalitis?

CSF exam and culture, CT, MRI, WBC count. blood cultures.