E3 bugs + drugs Flashcards
just quick review of basic concepts without the detail
most common pathogen CAP
strep pneumo
3 atypicals in CAP
myco
legionella
chlamydia
when to get MRSA nasal PCR in cap
staph aureus infxn
CAP outpatient, no comorbidities, empiric (3)
amox
doxy
if macrolide resistance >25% use azithro
CAP outpatient, with comorbidities, empiric:
mono? (2)
combo? (2)
mono: levo (750mg) or moxi
combo: b-lactam + macrolide OR doxy
beta lactams recommended in outpatient CAP (3)
- amox/clav
- cefpodoxime
- cefuroxime
CAP, non-severe, inpatient.
mono: (2)
combo: (2)
mono: levo (750), moxi
combo: B-lactam + macrolide (DOXY NOT USED HERE)
beta lactams recommended in inpatient CAP
- amp/sulb
- ceftriaxone
CAP, inpatient, severe (no MRSA or pseudo risk factors), empiric:
combo: (2)
combo: (2)
combo: levo/moxi + b-lactam
combo: b-lactam + macrolide
MRSA coverage for inpatient CAP if risk factors present (2)
vanc
linezolid
pseudomonas coverage for inpatient CAP if risk factors present (3)
- piper/tazo
- cefepime
- meropenem
CAP pathogen directed:
strep pneumo, pref drugs (4)
pen g
amox
ceftriaxone
levo/moxi
CAP pathogen directed:
staph aureus, pref drugs (4)
cefazolin
naf
vanc
linezolid
HAP/VAP common pathogens: (4 total 1 most common)
enterobacterales*
pseudomonas
acinetobacter
staph aureus
empiric antibiotic choices for MRSA coverage in HAP/VAP (2)
vanc
linezolid
empiric antibiotic choices for pseudomonas coverage in HAP/VAP (5)
- piper/tazo
- cefepime
- imipenem
- meropenem
- levo
empiric therapy, HAP, not at risk of mortality (5)
- piper/tazo
- cefepime
- imipenem
- meropenem
- levo
empiric therapy, HAP, not at risk for mortality but MRSA risk (7)
- piper/tazo
- cefepime
- imipenem
- meropenem
- levo
+ vanc OR linezolid
empiric therapy, HAP, high mortality and MRSA risk (a lot)
- piper/tazo
- cefepime
- imipenem
- meropenem
- levo
- tobra
(PICK 2 CLASSES ABOVE) AND ADD vanc or linezolid
Goal for VAP:
provide coverage for ____ and _______
MRSA
pseudomonas
empiric therapy, VAP
(a lot)
- piper/tazo
- cefepime
- imipenem
- meropenem
- levo
- tobra
(PICK 2 CLASSES ABOVE) AND ADD vanc or linezolid
most common pathogens for acute bronchitis
resp viruses
3 common pathogens for acute exacerbation of chronic bronchitis
strep pneumo
h. flu
moraxella
2 pathogens for pts with frequent antibiotic use in acute exacerbation of chronic bronchitis
enteroabacterales
pseudmonas
3 pref treatments for acute exacerbation of chronic bronchitis
- amox/clav
- cefuroxime
- cefpodoxime
3 alt treatments for acute exacerbation of chronic bronchitis
doxy
bactrim
azithro
treatment of acute exacerbation of chronic bronchitis with risk of pseudomonas (1)
levo 750mg !!! high dose
most common pathogens for acute pharyngitis:
viruses: (3)
bacteria: (1)
viruses: rhino, corona, adeno
bacteria: strep pyogenes *
2 drugs of choice for acute pharyngitis
pen VK
amox
4 tx options for acute pharyngitis if non-anaphylactic pen allergy
- cephalexin
- cefadroxil
- cefuroxime
- cefpodoxime
2 tx options for acute pharyngitis in anaphylactic pen allergy reaction
- azithro
- clinda
3 common pathogens for acute bacterial rhinosinusitis
- strep pneumo
- h. flu
- moraxella
2 common pathogens in acute bacterial rhinosinusitis for pts w/ frequent antibiotic use
- MSSA/MRSA
- Pseudomonas
first line treatment option for acute bacterial rhinosinusitis
augmentin low strength or high strength if concern for pen resistance
3 2nd line tx options for acute bacterial rhinosinusitis
- doxy
- levo
- moxi
acute bacterial rhinosinusitis tx with concern for MRSA (4)
add:
-doxy
- bactrim
- linezolid
- clinda?
acute bacterial rhinosinusitis tx with concern for pseudomonas
add levo 750*
most common pathogen for all UTIs
E. Coli
some extra bacteria for complicated UTIs (2)
- enterococcus
- pseudomonas
4 non-b-lactams that are frequently used in UTIs
- nitrofurantoin
- bactrim
- cipro/levo
- Fosfomycin
what 5 oral beta lactams can be used in UTIs
- cephalexin
- cefadroxil
- cefpodoxime
- augmentin
- amox alone
5 tx options for empiric UTI tx for hospitalized pts
- amp + gent
- cefazolin +/- gent
- ceftriaxone
- cefepime
- gent alone?
3 rec tx options for prostatitis
- FQs
- Bactrim
- Some b-lactams
what are the 2 beta lactams rec for prostatitis tx
- cephalexin
- augmentin
most common bacteria for non-purulent ssti
strep pyogenes
empiric tx options for severe non-purulent ssti (1.5)
vanc + piper/tazo
empiric tx for moderate non-purulent ssti (4)
-pen
- ceftriaxone
- cefazolin
- clinda
ALL IV
empiric tx for mild non-purulent ssti (4)
- pen VK
- cephalosporin
- diclox
- clinda
ALL ORAL
3 causative pathogens for purulent ssti
MRSA
MSSA
strep spp
empiric tx for severe purulent ssti (3)
vanc
dapto
linezolid
empiric tx for severe purulent ssti:
targeted antibiotics for MSSA (3)
- naf
- cefazolin
- clinda
empiric tx for moderate purulent ssti (2)
- bactrim
or - doxy
empiric tx for moderate purulent ssti:
targeted antibiotics MSSA (2)
diclox
cephalexin
management of mild purulent ssti
I & D
most common pathogen for necrosis fasciitis
strep pyogenes
empiric antibiotics for severe necrotizing fasciitis (1.5)
vanc + piper/tazo
empiric tx for severe necrosis fasciitis:
targeted antibiotic for S. Pyogenes (1)
PCN + clinda
impetigo:
want empiric coverage against ________ and ________
strep spp
staph aureus
tx for impetigo:
few lesions (1)
topical mupirocin 5 days
tx for impetigo:
many lesions/outbreak (2)
diclox or
cephalexin (we will just use cephalexin for this tho)
tx for impetigo:
many lesions/outbreak:
streptococcus ONLY (1)
drug of choice is PCN
tx for impetigo:
many lesions/outbreak:
Allergies/MRSA (3)
- doxy
- clinda
- bactrim
DOC animal bites (1)
augmentin
alternative tx for animal bites (3)
- 2nd gen ceph
- 3rd gen ceph
+ anaerobic coverage
common pathogens for DFI
(2.5)
s. aureus
strep spp
entero comes up a couple times
bacteria to cover if pt presents to ED in indianapolis for DFI
MRSA
Mild DFI: need to cover what 2 things
MSSA
strep spp
first line mild DFI (3)
diclox
cephalexin
clindamycin
first line options mild DFI w/ recent antibiotics (3)
switch to:
- augmentin
- levo
- moxi
first line tx mild DFI w/ MRSA risk factors (2)
switch to:
bactrim
doxy
moderate DFI:
need to cover what 4 things
- MSSA
- strep spp
- enterobacterales
- anaerboes
first line tx moderate DFI (3)
- moxi alone
- augmentin alone
- cipro/levo + clinda OR metro
tx moderate DFI w/ pseudomonal risk factors (1)
SWITCH to
cipro/levo + clinda or metro
tx moderate DFI w/ MRSA risk factors (4)
ADD:
-doxy
- linezolid
- vanc
- bactrim
first line severe DFI (3)
- piper/tazo
- carbapenem
- cefepime + clinda or metro
tx severe DFI w/ MRSA risk factors (3)
ADD
- vanc
- linezolid
- dapto (?)
big 3 pathogens for AOM
strep pneumo
h. flu
moraxella
first line for AOM and dose
amox
80-90 mg/kg/day q12h 5-10 days
2nd line for AOM and dose
augmentin (if amox failure) 90/mg/kg/day q12h and limit clav to <10mg/kg/day
when is augmentin 1st line for AOM? (2)
- amox in last 30 days
- conjunctivitis
other 2nd line options for AOM
(3) (can be first if pen allergy)
- cefpodoxime
- cefdinir - sucks
- cefuroxime
tx option for AOM when oral is not an option or fails (1)
ceftriaxone
most common pathogen of CSOM
MRSA
initial tx for CSOM (2)
- ofloxacin or
- cipro
both ear drops for 2 weeks
2 pathogens for AOE
pseudomonas
staph aureus
3 tx options for AOE
- all ear drops
- polyB, neo, and hydrocortisone
- ofloxacin
- cipro w/ hydrocortisone
empiric 1st line tx for ped UTI
- cephalexin (she said shes uses this)
- amox
tx of bronchiolitis secondary to RSV in ped (4)
- oxygen
- hydration
- mech vent
- ECMO
2 drugs for RSV protection for infants
palivizumab
nirsevimab
3 drugs for maintenance lung treatment in CF
- dornase alfa
- inhaled mannitol
- hypertonic saline
2 anti-inflammatory drugs for CF
- azithro
- ibuprofen
empiric therapy for CF exacerbation, MRSA (5)
- bactrim
- clinda
- vanc
- doxy
- linezolid
empiric therapy for CF exacerbation, MSSA (3)
- cefazolin
- unasyn
- anti-pseudomonal b-lactam
pseudomonas therapy for CF exacerbation (a lot)
- zosyn
- imipenem
- ceftazidime
- meropenem
- cefepime
- tobra/ami
2 inhaled antibiotics for CF:
initial:
suppression/chronic:
chronic/cant tolerate above:
- tobra 28 days
- tobra 28 days on/off
- aztreonam
common pathogen for osteomyelitis
staph aureus
also want to cover MSSA + MRSA for like everything it seems like
empiric tx for osteomyelitis
typically a beta lactam that provides MSSA, strepto, and GN coverage
- cefazolin
- ceftriaxone
- cefepime
- piper/tazo
- holy shit like everything
osteomyelitis empiric drugs with MRSA coverage needed (3)
- vanc
- dapto
- linezolid
bone + joint infection oral drug options for streptococci (3)
- amox
- cephalexin
- clinda
bone + joint infection oral drug options for MSSA (5)
- diclox
- cephalexin
- cefadroxil
- bactrim
- linezolid
bone + joint infection oral drug options for MRSA (3)
- linezolid
- bactrim
- clinda
bone + joint infection oral drug options for GNR (2)
- bactrim
- FQs