Gastroenteritis

Question 1

Most common organism causing food poisoning

Answer 1

Campylobacter

Question 2

This organism causes outbreaks

Answer 2

Salmonella

Question 3

What is diarrhoea

Answer 3

More than 3 unformed stools/day

Question 4

What is dysentry

Answer 4

Inflammation of the intestine causing diarrhoea and associated with blood and mucus
-generally associated with fever, abdo pain and tenesmus

Question 5

Name two organisms which could cause dysentry

Answer 5

Shigella, campylobacter

Question 6

Infection with which bacteria may mimic appendicitis

Answer 6

Yersinia entercolitis

Question 7

Incubation of bacillus cerues

Answer 7

1-6 hours

Question 8

Incubation of staph aureus

Answer 8

1-6 hours

Question 9

May give you a deadly rash and severe headache and kill you

Answer 9

Scombroid

Question 10

Which type of food poisoning has lots of different serotypes

Answer 10

Shigella

Question 11

What does shigella toxin do?

Answer 11

Binds to the receptors found on renal cells, RBC and others

• inhibits protein synthesis
• causes cell death

Question 12

Which type of toxin is more potent in shigella

Answer 12

Toxin 2

Question 13

How would E.coli present

Answer 13

Bloody diarrhoea

Question 14

What might you catch E. coli from?

Answer 14

Beef

raw milk/water

Question 15

What toxin does E.coli 0157 make?

Answer 15

Makes verotoxin

Question 16

How does e.coli 0157 present?

Answer 16

Bloody diarrhoa, haemorrhagic colitis

Question 17

Triad of HUS?

Answer 17

Anaemia
Renal failure (increased uraemia)
Low platelets

Question 18

Travel related E. coli toxin

Answer 18

EnteroTOXIgenic ETEC

EnteroAGGREGATIVE EAIC

Question 19

Non breastfed related E. coli toxin

Answer 19

EnteroPATHOgenic EPEC

Question 20

Bloody diarrhoea in a child/elderly

Answer 20

E. coli 0157

Question 21

What would you catch campylobacter from?

Answer 21

Poultry (raw milk)

Question 22

Abx for campylobacter

Answer 22

Macrolides (e.g. azithromycin)

Question 23

What would you catch salmonella from?

Answer 23

Poultry, meat, raw egg

Question 24

O-antigen

Answer 24

Salmonella

Question 25

Most common serological types of salmonella

Answer 25

B, C, D

Question 26

Fever, muscle aches, diarrhoea

Answer 26

Listeria

Question 27

Caught from unpasteurised milk products, deli counter

Answer 27

Listeria

Question 28

Diagnosis of norovirus

Answer 28

Real-time reverse transcription-PCR assay

RT-PCR

Question 29

Diagnosis of rota-virus

Answer 29

Rotavirus antigen in stool

Question 30

Who catches rotavirus

Answer 30

More common in children <3 years

Question 31

How is rota virus spread?

Answer 31

Person-person and faecal oral

Question 32

Is rotavirus bloody?

Answer 32

No

Question 33

When do you give the rotavirus vaccine?

Answer 33

At 2 and 3 months

Question 34

How is noravirus spread?

Answer 34

Faecal-oral and droplet spread

Question 35

D&V explosive and sudden!

Answer 35

Noravirus