organisms and antibiotics

Question 1

example aerobes

Answer 1

staphylococci
streptococci
enterococci
Coliforms
i.e. the majority of human pathogens

Question 2

example strict aerobes

Answer 2

pseudomonas

Question 3

what is pseudomonas sensitive to

Answer 3

gentamicin

Question 4

example anaerobes

Answer 4

clostridium
Bacteroides
Anaerobic cocci

these are present in large numbers in the colon

Question 5

what are anaerobes sensitive to

Answer 5

metronidazole

Question 6

____ are aerobic and gram -ve

Answer 6

coliforms

Question 7

what is the antibiotic for coliforms

Answer 7

gentamicin

Question 8

what organisms are found in the mouth?

Answer 8

Strep. “viridans”, Neisseria sp., anaerobes

Candida sp. (few), Staphylococci

Question 9

what organisms are found in the stomach duodenum?

Answer 9

Usually sterile

Few Candida sp. & Staphylococci may survive

Question 10

what organisms are found in the bile ducts?

Answer 10

usually sterile

Question 11

what organisms are found in the jejunum?

Answer 11

Small numbers of coliforms and anaerobes

Question 12

what organisms are found in the colon?

Answer 12

Large numbers of coliforms (106 per gram), anaerobes (109 per gram) and Enterococcus faecalis

Question 13

what is the empirical treatment for intra-abdominal sepsis?

Answer 13

amoxicillin, gentamicin and metronidazole

Question 14

what does amoxicillin target?

Answer 14

g+ve; streptococci and enterococci

Question 15

what does gentamicin target?

Answer 15

g -ve; aerobic coliforms

Question 16

what does metronidazole target?

Answer 16

g-ve; anaerobes

Question 17

what is the prophylactic antibiotic treatment for GI/hepatobiliary sugrery?

Answer 17

gentamicin and metronidazole