infectious disease outline key points Flashcards
macrolide AE
GI upset, QTc prolongation
fluroquinolone AE
QTc prolongation, peripheral neuropathy, tendonitis
drug of choice for MRSA
vancomycin
3rd generation cephalosporins and ESBL
3rd generation cephalosporins are resistant and cannot be used
ESBL organisms make abx inactive
vancomycin IV vs PO
IV systemic infections
PO c. diff
bactrim use
pneumonia, skin infections, UTI, bone infections
first generation cephalosporin spectrum
streptococcus, staph aureus (MSSA)
doesn’t cover MRSA
minimal gram neg. coverage
drug of choice for syphilis
natural penicillin
drugs for penicillin-resistant organisms
anti-staphyloccal penicillin (nafcillin or oxacillin)
amino-penicillin clinical use (empirical treatment)
otitis media, acute pharyngitis
first generation cephalosporin clinical usage?
skin infections and prophylaxis for surgery
**excellent drug for MSSA
first line drug for severe c. diff
vancomycin PO
Agents to avoid during pregnancy
fluroquinolones, tetracyclines, sulfamethoxazole-trimethoprim (bactrim)
vancomycin AE
nephrotoxcic, ototoxicity
Red man’s syndrome is not an allergy, it is secondary to too rapid infusion rate
cephalosporin AE
hypersensitivity, GI intolerance, seizure (cefepime), neutropenia
first line drug for mild c. diff
metronidazole
cephalosporins that covers pseudomonas?
ceftazidime (3rd)
cefepime (4th)
which beta lactamase inhibitors covers pseudomonas?
piperacillin-tazobactam
aztreonam spectrum
only covers gram-negative
monobactams
which beta lactamase inhibitors covers MSSA?
augmentin
amoxicillin doesn’t work
fluroquinolone spectrum
broad- both gram negative and positive (NOT MRSA)
ciprofloxacin poor streptococcus (don’t use for pneumonia)
moxifloxacin does not cover pseudomonas
clarithromycin special consideration
inhibits CYP450, increased GI intolerance and more frequent dosing, many drug interactions
linezolid clinical use
drug-resistant enterococcus or staphylococcal infections of the lung
macrolides spectrum
streptococcus, minimal gram negative
used for pneumonia and chlamydia
daptomycin and pneumonia
DO NOT USE
lung surfactant makes the drug inactive
linezolid spectrum
gram positive, MSSA, MRSA, MRSE, VRE
3rd generation cephalosporins spectrum
streptococcus, MSSA, enteric GNR
ceftazidime covers pseudomonas
metronidazole spectrum
anaerobic gram negative
c. diff
used in distal part of colon
vancomycin monitoring
15-20 micrograms/ml = therapeutic
> 20 nephrotoxic
<10 no effect, clinical failure, and resistance
penicillin AE
hypersensitivity, renal adjustments (except anti-staph penicillin), GI intolerance
bactrim AE
skin reactions, neutropenia, nephrotoxic, hyperkalemia
drugs that treat pseudomonas
piperacillin/tazobactam ceftazidime cefepime aztreonam all carbapenems except ertapenem levofloxcin ciprofloxcin aminoglycosides polymyxins
pseudo-CARBS Like Pizza And Pasta Certainly Cause Celebration And Excitement
vancomycin spectrum
gram positive broad spectrum
tetracycline AE
GI intolerance, NV (tygacil), vertigo (minocin), photosensitvity
bactrim spectrum
gram negatives (NOT pseudomonas) and gram positive (including MRSA)
Natural penicillin spectrum
staph aureus, stretococcus, syphilis
drugs that treat MRSA
vancomycin linezolid daptomycin cindamycin tetracyclines bactrim ceftaroline
Voluptuous Ladies Dance The Can Can Beautifully!
cephalosporin used against MRSA?
ceftaroline
DOES NOT cover pseudomonas
bactrim contraindication
sulfa allergies can cause Stevens Johnson syndrome
pregnancy
adjust for renal patients
which beta lactamase inhibitors are PO? IV?
unasyn and zosyn IV
augmentin PO
ceftriaxone dosing?
once a day
long half life and highly protein bound
linezolid interactions
SSRI
why were 3rd generation cephalosporins developed?
to cover gram negative
amino-penicillin spectrum
streptococcus, enteric gram-negative (e. coli, k. pneumoniae), haemophilus influenzae, enterococcus faecalis
QTc prolongation agents
macrolides and fluroquinolones
don’t give to cardiac patients, antipsychotics, anti-arrhythmias
metronidazole AE
GI upset, metallic taste, headache, dark urine
DON’T DRINK alcohol
dosing of first generation cephalosporin
3-4x daily
short half life
tetracycline spectrum
gram negative (NOT pseudomonas), gram positive (including MRSA)
drug of choice for MSSA
anti-staphylococcal penicillin
alternative to anti-staphylococcal penicillin for hepatic patients?
first generation cephalosporin
linezolid AE
thrombocytopenia (1-2 weeks after therapy), diarrhea, serotonin syndrome
aztreonam cross sensitivity
ceftazidime
fluroquinolones that cover pseudomonas
ciprofloxacin and levofloxacin