Gram (-) Bacteria - Enterics

Question 1

What enteric is a lactose fermenter and a normal part of the GI flora?

Answer 1

Escherichia Coli (E. Coli)

Question 2

What does Escherichia Coli have that allows it to adhere to host cells?

Answer 2

Pili

Question 3

Overall, what 4 diseases does Escherichia Coli cause?

Answer 3

Diarrhea
UTI
Neonatal Meningitis
Pneumonia

Question 4

1 cause of a UTI?

Answer 4

Escherichia Coli

Question 5

3 specific strains of Escherichia Coli that can cause diarrheal illnesses?

Answer 5

ETEC
EIEC
EHEC

Question 6

What toxins are associated with ETEC strain of Escherichia Coli?

Answer 6

Heat labile and Heat stabile toxins

Question 7

What type of diarrhea does the ETEC strain of Escherichia Coli cause?

Answer 7

Watery diarrhea

Question 8

EIEC strain of Escherichia Coli contains?

Answer 8

Invasive plasmid

Question 9

What type of diarrhea does the EIEC strain of Escherichia Coli cause?

Answer 9

Bloody diarrhea

Question 10

What toxin is associated with the EHEC strain of Escherichia Coli?

Answer 10

Shiga - like toxin 1 and 2

Question 11

What type of diarrhea does the EHEC strain of Escherichia Coli cause?

Answer 11

Bloody diarrhea

Question 12

ETEC, EIEC, EHEC diarrhea types

Answer 12

ETEC - watery

EIEC, EHEC - bloody

Question 13

What strain of Escherichia Coli is Hemolytic Uremic Syndrome (HUS) caused by?

Answer 13

EHEC 0157

Question 14

Symptoms of Hemolytic Uremic Syndrome (HUS) due to EHEC?

Answer 14

Anemia
Thrombocytopenia
Renal failure

Question 15

Shigella is what shape?

Answer 15

Rod

Question 16

Most common shigella in the U.S?

Answer 16

S. Sonnei

Question 17

What is the toxin produced with shigella?

Answer 17

Shiga toxin

Question 18

Action of Shiga toxin?

Answer 18

Inhibits 60S ribosomal subunit and thus, protein synthesis = cell death

Question 19

Inhibits 60S ribosomal subunit and thus, protein synthesis = cell death

Answer 19

Shiga toxin

Question 20

What strain of shigella produces shiga toxin?

Answer 20

S. Dysenteriae

Question 21

Symptoms with Shigella infection?

Answer 21

Fever and bloody diarrhea

Question 22

Salmonella Typhi causes?

Answer 22

Typhoid Fever

Question 23

What causes Typhoid fever?

Answer 23

Salmonella Typhi

Question 24

“Typhoid Mary”

Answer 24

ASYMPTOMATIC carrier of Salmonella Typhi

Question 25

Symptoms of Typhoid Fever due to salmonella typhi?

Answer 25

Stepwise fever - rises during day and drops in morning RUQ pain and rose spots on abdomen Delirium when fever peaks Gallbladder issues

Question 26

What type of salmonella is found in virtually all animals?

Answer 26

Non-typhoidal salmonella

Question 27

Symptoms of infection due to non-typhoidal salmonella?

Answer 27

Gastroenteritis and 1/2 will get a fever

Question 28

Symptoms of Typhoid Fever due to salmonella typhi?

Answer 28

Stepwise fever - rises during day and drops in morning RUQ pain and rose spots on abdomen Delirium when fever peaks Gallbladder issues

Question 29

What is a common source of Yersinia Enterocolitica?

Answer 29

Milk products

Question 30

Symptoms of infection with Yersinia Enterocolitica?

Answer 30

Pseudoappendicitis, fever, diarrhea

Question 31

What bacteria commonly mimics appendicitis?

Answer 31

Yersinia Enterocolitica

Question 32

What bacteria has a swarming growth pattern of concentric rings?

Answer 32

Proteus Mirabilis

Question 33

Proteus Mirabilis growth pattern?

Answer 33

Swarming concentric rings

Question 34

Proteus Mirabilis is ____ (+)

Answer 34

Urease (+)

Question 35

Job of urease?

Answer 35

Breaks down urea into CO2 and ammonia

Question 36

What color will the urine turn in the lab with urease (+)

Answer 36

Pink

Question 37

Proteus Mirabilis is a common cause of?

Answer 37

UTI in nosocomial setting

Question 38

What population is at higher risk for infection with Klebsiella Pneumoniae?

Answer 38

Alcoholics and Hospitalized patients

Question 39

Symptoms of Klebsiella Pneumoniae?

Answer 39

Necrotizing pneumonia with currant jelly sputum

Question 40

What type of disease is associated with Klebsiella Pneumoniae?

Answer 40

Necrotizing pneumonia with currant JELLY sputum