ABX: Spectrum, Uses Flashcards

1
Q

Spectrum of Activity: Narrow Spectrum/Natural Penicillins

A
  • *narrow, mostly G+**
  • Strep, Enterococcus
  • N. meningitidis
  • Peptostrepto, Clostridium
  • Treponema pallidum, Listeria
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2
Q

Spectrum of Activity: Penicillinase Resistant/Anti-Staph Penicillins

A
  • *narrow, mostly G+**
  • MSSA, Streptococcus, MSSE
  • Peptostrepto
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3
Q

Spectrum of Activity: Amino-Penicillins

A
  • *extended spectrum**
  • Strep and Enterococcus
  • H. flu, Neisseria, Proteus
  • Peptostrepto, Clostridium
  • Listeria, H. pylori
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4
Q

Spectrum of Activity: Amino-Penicillins w/ Beta-lactamase Inhibitor

A
  • *adds coverage for Staph, M. cat, E. coli, Klebsiella, B. frag**
  • Strep, Entero
  • H flu, Neisseria, Proteus
  • Peptostrepto, Clostridium
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5
Q

Spectrum of Activity: Anti-Pseudomonal Penicillins

A
  • *similar to amino-pens, but add Pseudomonas**
  • Staph, Strep, Entero
  • H. flu, Neisseria, Proteus, M cat, E coli, Klebsiella, Proteus
  • Peptostrepto, Clostridium
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6
Q

Spectrum of Activity: Anti-Pseudomonal Penicillins w/ Beta-lactamase Inhibitor

A
  • *adds coverage for Serratia, Enterobacter, B. frag**
  • Staph, Strep, Entero
  • H. flu, Neisseria, Proteus, M cat, E coli, Klebsiella, Proteus
  • Peptostrepto, Clostridium
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7
Q

Spectrum of Activity: Cephalosporins

A

1st gen: G+ , G- **
2d gen: G+ **
, G- **

3rd gen: G+ , G- **

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8
Q

Spectrum of Activity: Carbapenems

A
  • *broad spectrum ICU coverage**
  • Staph, Strep
  • good G- including Pseudomonas
  • good anaerobes except C diff
  • no coverage MRSA, DRSP, VRE, Enterococcus, atypical pneumonia
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9
Q

Spectrum of Activity: Monobactams

A
  • *Gram negative specialist**

- good activity against gram neg anaerobes, including Pseudomonas

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10
Q

Spectrum of Activity: Vancomycin

A
  • *Gram positive specialist**
  • very active against Staph, HCA-MRSA, MRSE, Strep, Enterococcus
  • no gram neg coverage
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11
Q

Spectrum of Activity: FQs

A
  • Ciprofloxacin (2nd gen) is best pseudomonal
  • Levofloxacin (3rd) is better resp FQ than cipro
  • Moxifloxacin (4th) is best resp FQ, only one w/ B. frag activity
  • all cover: chlamydia, legionella, mycoplasma, mycobacterium TB, H pulori
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12
Q

Spectrum of Activity: TMP/SMX

A
  • *varied**
  • Strep pneumoniae, Staph
  • H flu, M cat, E coli, Klebsiella, Serratia
  • GI: Enterotoxigenic E coi, Salmonella, Shigella, Vibrio cholerae, Yersinia
  • Listeria, Nocardia, Mycobacterium marinum
  • Pneumocystis (carinii) jiroveci
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13
Q

Spectrum of Activity: Aminoglycosides

A
  • *good gram neg activity including Pseudomonas**
  • tobramycin best for pseudomonas (Toby goes with Sue)
  • gentamicin best for serratia (Gent goes with Serra)
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14
Q

Spectrum of Activity: Tetracyclines

A
  • *broad spectrum bacteriostatic drugs**
  • inhibit many gram + and - organisms
  • rickettsiae, spirochetes, mycoplasmas, chlamydiae, borrelia burgdorferi
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15
Q

Spectrum of Activity: Macrolides

A
  • Erythro: varied G+, ok G-, Clostridium, mycoplasma/legionella/chlamydia species, Bordetella pertussis, Treponem, Campylobacter jejuni
  • Clarithro: same as erythro but add toxoplasma gondii, borreli burgdorferi, babesia microti
  • Azithro: broader spectrum; improved H flu; Peptostrepto and Clostridium; M and C pneumoniae, Treponema, N. gonorrhea, Chlamydia trachomatis
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16
Q

Spectrum of Activity: Clindamycin

A
  • *anaerobes and Gram positives**
  • Staph, Strep
  • B. frag, other Bacteroides, Clostridia, Peptostreptococcus
  • P. acnes, Fusobacterium
  • parasites: Gardnerella, Toxoplasmosis, PCP
17
Q

Spectrum of Activity: Metronidazole

A
  • *anaerobes and parasites**
  • Gm- anaerobes (Bacteroides) and some Gm+ (Clostridium)
  • protozoa: Trichomonas, Giardia
  • H. pylori
18
Q

What abx has activity against Pneumocystis (carinii) jiroveci?

A

TMP/SMX

19
Q

What abx (6) have activity against Pseudomonas?

A
  • antipseudomonal penicillins +/- BLI
  • 3rd gen cephalosporins
  • 2nd gen FQ
  • carbapenem
  • aminoglycosides (tobramycin)
20
Q

What abx (6) have activity against B. frag?

A
  • amino pens with BLI
  • antipseudomonal pens with BLI
  • 2nd gen cephalosporins
  • 4th gen FQ
  • TCNs
  • anti-anaerobes (clindamycin, metronidazole)