Antibiotic susceptibility summary

Question 1

what are the important beta lactams for our use?

Answer 1

-penicillin G
-Amoxicillin
-1st Gen Cephalosporins
-3rd Gen Cephalosporins

Question 2

Penicillin G susceptibility

Answer 2

-gram + aerobes
-anaerobes

Question 3

amoxicillin susceptibility

Answer 3

-gram + aerobes
-anaerobes
-some gram - aerobes

Question 4

1st Gen Cephalosporins susceptibility

Answer 4

-gram + aerobes
-anaerobes
-some gram - aerobes

Question 5

3rd Gen Cephalosporins susceptibility

Answer 5

-gram - aerobes
-some gram + aerobes
-some anaerobes

Question 6

Aminoglycosides susceptibility (eg. Gentamicin)

Answer 6

-staph (a Gram + aerobe)
-Gram - aerobes
-some atypical bacteria, Mycoplasma

Question 7

Fluoroquinolones susceptibility (eg. enrofloxacin)

Answer 7

-staph (a gram + aerobe)
-Gram - aerobes
- atypical bacteria

Question 8

Tetracyclines susceptibility in small animals

Answer 8

Often 1st choice for atypicals

Question 9

Sulfonamides susceptibility in small animals

Answer 9

Often a good choice for atypicals

(also, use for sporadic bacterial cystitis? (G+/-))

Question 10

tetracyclines susceptibility for livestock

Answer 10

-some effectiveness against many common G+ & G- aerobic pathogens, as well as anaerobes
-effective against atypical bacteria

Question 11

Sulfonamides susceptibility for livestock

Answer 11

-some effectiveness against many common G+ & G- aerobic pathogens, as well as anaerobes
-effective against atypical bacteria

Question 12

Macrolides types

Answer 12

erythromycin (old)
newer macrolides

Question 13

Erythromycin susceptibility

Answer 13

-G+ aerobic
-anaerobes
-some G- aerobes (not enterobacteriaceae)
-some atypical bacteria

Question 14

Most newer macrolides susceptibility

Answer 14

• G- aerobes
• some of everything else