Bacterial and Fungal Meningitis Flashcards Preview

Clinical Pathology > Bacterial and Fungal Meningitis > Flashcards

Flashcards in Bacterial and Fungal Meningitis Deck (76)
Loading flashcards...
1

Is meningitis usually cause by viruses or bacteria/

Viruses

2

Is meningitis usually cause by viruses or bacteria/

Viruses

3

Is encephalitis usually caused by viruses or bacteria?

Viruses

4

Insidious onset of fever, headache +/- neck stiffness, altered consciousness, seizures, focal neurological signs.

Brain abscess

5

Are brain abscesses usually caused by viruses or bacteria?

Bacteria, may be parasitic

6

What are the 2 main ways in which microorganisms can invade the brain?

Blood bourne invasion-blood brain barrier or blood CSF barrier
Peripheral nerves

7

Describe the appearance of neisseria meningitidis

Gram -ve diplococci

8

What does neisseria meningitidis, haemophilus influenzae and streptococcus pneumonia all have in common with regards to their requirements for growth?

All require blood

9

Give 5 examples of the capsular types of neisseria meningitidis

A, B, C, W135, Y

10

Where is the natural habitat of neisseria meningitidis?

Nasopharynx

11

Is what demographics of people is neisseria meningitidis carried in?

Smokers, uni students

12

Name 2 virulence factors for neisseria meningitidis

Capsulated
Acquires iron from transferin

13

Name 6 ways in which neisseria meningitidis presents

Septicaemia
Septicaemia with purpuric rash
Septicaemia with meningitis
Meningitis with no rash
Chronic meningococcal bacteraemia with arthralgia
Focal sepsis
Conjunctivitis, endopthalmitis

14

What does purpuric mean?

non blanching

15

Treatment for neisseria meningitidis, haemophilus influenzae and streptococcus pneumonia

Ceftriaxone, cefotaxime, penicillin (NM), ampicillin (HI)

16

In which type of bacteiral meningitis is chemoprophylaxis of contacts of invasive disease NOT routinely done?

Streptococcus pneuomoniae

17

The current vaccinations against Neisseria meningitidis target which strains?

Group A,C and W135. None againsts group B

18

Where in the world is epidemics of neisseria meningitidis common? Usually group A

Arican meningitis belt

19

Describe the appearance of haemophilus influenzae

Gram -ve bacilli

20

What are the different strains of haemophilus influenzae and which is the most invasive disease?

a-f. B

21

Virulence factors of haemophilus influenzae

Type B capsule
Fimbriae
IgA proteases

22

Vaccines are available for what strain of haemophilus influenzae?

Type B

23

Vaccines are available for what strain of haemophilus influenzae?

Type B

24

Is encephalitis usually caused by viruses or bacteria?

Viruses

25

Insidious onset of fever, headache +/- neck stiffness, altered consciousness, seizures, focal neurological signs.

Brain abscess

26

Are brain abscesses usually caused by viruses or bacteria?

Bacteria, may be parasitic

27

What are the 2 main ways in which microorganisms can invade the brain?

Blood bourne invasion-blood brain barrier or blood CSF barrier
Peripheral nerves

28

Describe the appearance of neisseria meningitidis

Gram -ve diplococci

29

What does neisseria meningitidis, haemophilus influenzae and streptococcus pneumonia all have in common with regards to their requirements for growth?

All require blood

30

Give 5 examples of the capsular types of neisseria meningitidis

A, B, C, W135, Y

Decks in Clinical Pathology Class (53):