onlinemeded- infection Flashcards
which abscesses- staph or strep
staph
abx of choice for non-toxic vs toxic strep
non tox: cefalexin
tox: zosyn, augmentin
abx for non-toxic vs toxic staph
non-toxic: bactrim, clinda
toxic: vanc, linezolid, clinda
“blue gray” skin infection, think…
necrotizing fascitis
treatment for nec fasc
debride
3rd gen ceph
+ clinda
+ ampicillin
situations that arent safe to do LP
FND AMS Lesion Seizure Immunosuppressed
which meningitis has increased opening pressure
cryptococcus
treatment for bacterial meningitis
ceftriaxone
vanco
steroids
+/- ampicillin
work up if cant do LP
- give abx
- CT
- if mass on CT, test for HIV and toxo
- if neg for HIV and toxo, do brain biopsy (abscess or cancer)
hemorrhagic tap, think…
HSV
major criteria for infective endocarditis
bactermic (staph, strep, HACEK)
new regurg murmur
echo: vegetation
minor criteria for infective endocarditis
Fever >38
Vascular
Rheum
Risk factors
risk factors for infective endocarditis
IV drugs
prosthetics
history
vascular complications of infective endocarditis
dif size septic emboli
- -> PE
- -> embolic stroke
- -> acute limb ischemia
- -> splinter hemorrhages
- -> janeway lesions (painless)
rheum complications of infective endocarditis
roth spots
osler nodes ( ouch ouch)
glomerulonephritis
IE: staph, strep, HACEK- which acute, which subacute
acute: staph, strep
subacute: HACEK
presentation of acute vs subacute IE
acute: CHF, persistent bactermia, no rheum
==> abx until blood clx neg
subacute: cyclical fever, pos rheum
==> no abx until blood clx pos
how long of abx for IE?
4-6 weeks
when to do surgery for IE?
- CHF
- vegetation (>15 mm or >10mm +emboli)
- abscess
- fungus
abx of choice for native vs prosthetic vs subacute IE
native: vanc
subacute: vanc + ceftriaxone
prosthetic:
<60 days: vanc + gent + cefepime
>365: vanc + ceftriaxone
if no vanc, which abx for IE?
daptomycin
ppx abx for IE when someone has bad valve
amoxicillin
common bacteria in HCAP
MRSA
pseudomonas
treatment for HCAP
vanc, zosyn
