Week 6- Bugs and Drugs (Abx) Flashcards
What organisms does penicillin cover
Enterococcus
Strep pneumoniae
Strep A pyrogens
Top LEFT (Purple, gram positive)
What organisms does Dicloxacillin cover
Strep pneumoniae
Group A strep
MSSA (Methicillin susceptible staph aureus)
GRAM POSITIVE COCCI
What organisms does Amoxixillin cover
Enterococcus
Strep pneumoniae
Strep A pyrogens
Top LEFT (Purple, gram positive)
Original penicillins, but with slight gram negative coverage
Aminopenicillins
What organisms does Amoxicillin/clauvulanate (Augmentin) cover
Gram Positive:
Enterococcus faecalis
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Influenzae
Bacteroides fragilis
NOT: MRSA or Pseudomonas aerguinosa
What drugs does Piperacillin/tazobactam (Zosyn) cover
Gram Positive:
Enterococcus faecalis
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Influenzae
Bacteroides fragilis
Pseudomonas aerginosa
NOT: MRSA
Mostly reserved for very serious infections (Diabetic foot infection with pseudomonas risk)
All penicillins and derivitives cover Enterococcus except which one
Dicloxaxillin
Which Penacillin derivatives cover Bacteroides fragilis
Amoxicillin/clauvanate (Augmentin)
and Piperacillin/tazobactam (Zosyn)
What does cephalexin (Keflex) cover
First Generation
Gram Positive:
Strep Pneumoniae
Strep A
MSSA
Gram Negative:
PEK
What does Cefuroxime (Ceftin), Cefoxitin, and Cefdinir (Omnicef) cover
Gram Positive:
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Influenzae
Bacteroides fragilis (Cefoxitin is only cephalosporin with anaerobic coverage)
What is the only cephalosporin with anaerobic coverage
Cefoxitin (Covers bacteroides fraglilis)
What does Cefepime cover
4th generation
Gram Positive:
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Influenzae
ALSO COVERS PSEUDOMONAS
Does NOT cover Bacteroides fragilis and MRSA
What cephalosporin does Ceftaroline cover
Gram Positive:
Strep Pneumoniae
Group A strep
MSSA
MRSA
Gram Negative:
PEK
Influenzae
Does NOT cover Bacteroides fragilis and Pseudomonas
COVERS MRSA
What organisms does aztreonam cover
Gram Negative:
PEK
Pseudomonas aerguinosa
Haemophilus influenzae
Worth if someone has a very bad beta lactam allergy
What organisms does Ertapenem cover
Gram Positive:
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Haemophilus influenzae
Bacteriodes fragilis
NOT MRSA or Pseudomonas
What does Meropenem imipenem-cilastatin cover
Gram Positive:
Enterococcus
Strep Pneumoniae
Group A strep
MSSA
Gram Negative:
PEK
Pseudomonas
Haemophilus influenzae
Bacteriodes fragilis
NOT MRSA
First line of treatment for MRSA
Vancomycin - IV only for MRSA
Doxy also covers MRSA
Key adverse effects of vancomycin
Red man syndrome (Flushing if given too fast. Give dipenhydrameine if problematic)
Ototoxicity
Nephrotoxicity
Which drug is associated with red man syndrome
Vancomycin
MOA for vancomycin
Inhibit cell wall polymerization
Which organisms does vancomycin cover
GRAM POSITIVE COVERAGE
Strep A
Strep Pneumoniae
Enterococcus faecalis
MRSA
MSSA
Which organisms do aminoglycosides cover
GRAM NEGATIVE
PEK
Pseudomonas aerginosa
Haemophilus influenzae
NOT Bacteroides fragilis
What are the side effects of aminoglycosides
Nephrotoxicity
Ototoxicity
What are the aminoglycosides
tobramycin, amikacin, gentamycin
Which organisms do Macrolides cover
Azithro, clarithro, erythro
Gram Positive:
Strep Pneumoniae
Grop A strep pyrogens
Gram Negative:
Cover Haemophilus influenzae