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Flashcards in Microbiology Deck (53)
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1

what viruses cause meningitis

enteroviruses e.g. ECHO

2

most common cause of encephalitis

herpes simplex

3

tx of encephalitis

IV acyclovir

4

what bacteria cause cerebral abscesses

staph aureus
strep viridans

toxoplasma gondii in immunocompromised

5

symptoms of brain abscess

headahce
focal neurological deficit
papilloedema
N+V

NO SIGNS OF INFECTION e.g fever/chills

6

CT brain abscess

ring enhancing lesion

7

what causes the symptoms in neisseria meningitis

endotoxin

8

who gets meningococcal meningitis

10-23 year olds

9

what causes bacterial meningitis in children <10

haemophilus influenza

10

what causes bacterial meningitis in adults

pneumococcus

11

what causes bacterial meningitis in neonates+ the elderly

listeria

12

symptoms of bacterial meningitis

stiff neck
fever
altered consciousness
headache
vomiting
photophobia

13

what is aseptic meningitis

non pyogenic bacterial meningitis
- CSF has low WBCs, minimally elevated protein, normal glucose

14

empirical therapy bacterial meningitis

IV ceftriaxone 2g BD

15

treatment of bacterial meningitis in a patient with penicillin allergy

chloramphenicol + dexamethasone

16

treatment of listeria meningitis

IV ampicillin/amoxicillin

17

treatment of listeria meningitis in a patient with penicillin allergy

co trimoxazole

18

treatment of cryptococcal meningitis

IV amphotericin

19

what else is given in treatment of meningitis

steroids

20

prophylaxis for meningitis

500mg ciprofloxacin

21

definition of septic shock

severe sepsis with hypotension that does not improve with volume replacement therapy

22

empirical tx intra abdominal sepsis

Amoxicillin, Metronidazole, Gentamicin

23

SEPSIS 6

Take 3, Give 3

take
- lactate
- blood cultures
- urine output

give
- oxygen
- fluids
- IV antibiotics

24

examples of aerobes

staph
strep
coliforms
enterococci

25

examples of strict aerobes

pseudomonas
- requires oxygen

26

what are strict aerobes sensitive to

gentamicin

27

examples of anaerobes

clostridium

28

what are anaerobes sensitive to

metronidazole

29

what are coliforms

organisms that inhabit the large bowel

30

treatment of coliforms

gentamicin