Micro - Gram Negative Bacteria III

Question 1

yersinia enterocolitica

Answer 1

gram negative rod

another cause of acute gastroenteritis

Question 2

yersinia pestis

Answer 2

bubonic plague

Question 3

milk from domestic farm

Answer 3

with fever, diarrhea, RLQ abdomen pain
-yersina enterocolitica

can survive and grown in cold

Question 4

vibrio cholera

Answer 4

curved gram negative rod with single polar flagella

causes cholera

Question 5

choleragen

Answer 5

cholera toxin

same action as E. coli LT toxin

increased cAMP - active secretion of NaCl

Question 6

course of cholera

Answer 6

abrupt onset of watery diarrhea
-rice water

can lead to shock from fluid loss

and eventually death by dehydration

Question 7

leading cause of diarrhea in Japan

Answer 7

with sushi

vibrio parahaemolyticus

Question 8

three most common causes of diarrhea

Answer 8

campylobacter jejuni
ETEC
rotavirus

Question 9

drinking unpasteurized milk

Answer 9

campylobacter jejuni

Question 10

fever and headache followed a day after by cramps and bloody diarrhea

Answer 10

campylobacter jejuni

Question 11

most common cause of duodenal ulcers and chronic gastritis

Answer 11

helicobacter pylori

second is aspirin

Question 12

leading cause of gastric ulcers

Answer 12

aspirin

second is helicobacter pylori

Question 13

green metallic sheen on EMB

Answer 13

E. coli

Question 14

weil felix test

Answer 14

test using antibodies against proteus to diagnose rickettsial diseases

Question 15

pet turtles

Answer 15

salmonella

Question 16

thiosulfate citrate bile salts sucrose agar

Answer 16

flat yellow colony is vibrio cholera

Question 17

99% of intestinal flora

Answer 17

gram negative rods of family bacteroidaceae

Question 18

bacteriodes fragilis

Answer 18

no lipid A - no endotoxin

Question 19

trauma to abdomen (surgery, car wreck, gunshot wound)

Answer 19

abscesses in peritoneal cavity
-by bacteriodes fragilis

also in OB/GYN patients

Question 20

black pigment on blood agar

Answer 20

bacteriodes melaninogenicus

necrotizing anaerobic pneumoniases

• aspiration of sputum from mouth
• seizure or drunken patients

periodontal disease

Question 21

gram positive anaerobes in the mouth, vagina, intestine flora

Answer 21

peptostreptococcus

peptococcus

Question 22

fusobacterium

Answer 22

necrotizing anaerobic pneumonia
periodontal disease
abdominal and pelvic abscess
otitis media