Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Micro Exam 1 (Lauren) > Bacterial GI 1 > Flashcards

Bacterial GI 1 Flashcards

1
Q

Is cholera found naturally in coastal areas and estuaries?

A

Yes, including in the US gulf coast region

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the reservoir of O157:H7?

A

Cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do you treat cholera?

A

Fluid replacement and electrolytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What organism usually causes traveler’s diarrhea?

A

Enterotoxigenic E. coli (ETEC)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How is cholera spread?

A

Contaminated drinking water and food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 2 complications of campylobacter?

A
  1. Reiter’s syndrome in HLA-B27 peopel

2. Guillain-Barré paralytic syndrome **

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What condition makes the risk of sepsis due to vibrio vulnificus very high?

A

Liver dysfunction/alcoholism 🍷🍻🍸

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

E. Coli has an O antigen and an H antigen. Which one is a seroGROUP and which one is a seroTYPE?

A

Serogroup: O antigen

Serotype: H antigen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which organism causes a prodrome with fever, headache, malaise, and myalgia for 12-24 hours before the onset of diarrhea?

A

Campylobacter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Is h pylori infection common?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What kind of symptoms will vibrio parahaemolyticus cause?

A

Mild-cholera like illness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is hemolytic uremic syndrome?

A

Acute renal failure with poor prognosis a few days after bloody diarrhea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What metabolite does H. Pylori produce a ton of?

A

Urease

This turns into ammonia and raises the pH in the stomach to help it survive. It also is the way we test for it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Should we treat O157:H7 infections with antibiotics?

A

NO! Risk of HUS induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the classic way to get campylobacter?

A

Undercooked chicken

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which two cholera serotypes cause epidemics?

A

O-1

O-139

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Is prophylactic tetracycline treatment needed for people traveling to cholera endemic regions?

A

Not typically needed in people practicing normal hygiene, since the infectious dose is high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which organism mimics appenidicits?

A

Campylobacter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What food products are typically associated with O157:H7?

A

Beef and raw milk

Undercooked hamburger is a classic infection source 🍔

Also being discovered in some vegetables like the 2006 spinach contamination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What group of people usually gets campylobacter infections?

A

Young, college age adults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which organisms are associated with hemolytic uremic syndrome?

A

Enterohemorrhagic E. coli (EHEC) Primarily O157:H7

Shigella dysenteriae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

How do you diagnose h pylori?

A

Histologic detection in biopsy samples + culture

CLO test- detection of urease activity in biopsy tissue by pH change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the chief known precipitate of guillain-barre paralytic syndrome?

A

Campylobacter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Does ETEC infection cause a lot of damage to intestinal mucosa?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Can campylobacter induce Reuter’s syndrome?

A

Yes, in people with HLA-B27

26
Q

Which cholera vaccine contains the choleragen toxoid?

A

Dukoral

This means it may also help prevent travelers diarrhea due to enterotoxic E. coli

27
Q

What is the ideal temperature for campylobacter jejuni?

A

42 degrees C

28
Q

Which cholera vaccine is for travelers?

A

Vaxchora

V for vacation

29
Q

What are the 4 cholera vaccineS?

A

Dukoral

Shanchol

Vaxchora

Euvichol

30
Q

How do you treat O157:H7 ?

A

Vigilant oral rehydration

Extreme caution with antibiotics to avoid HUS

31
Q

What bacteria causes cholera?

A

Vibrio cholerae

32
Q

What time of year is the most dangerous to eat oysters becasue you’re at risk for vibrio vulnificus?

A

Warmer months

33
Q

What is the reservoir of h.pylori?

A

Humans

34
Q

What is the predominant form of enterohemorrhagic E. coli?

A

O157:H7, but there are several other strains that have been designated as shiga-toxin producing (STEC) that may also induce HUS

35
Q

How can you tell O157:H7 E. coli apart from the E. coli that is your normal flora?

A

Grow it on MacConkey’s Sorbitol agar

O157 can NOT ferment sorbitol, so it’s colonies will appear white, and regular E. coli will be bright red/pink

36
Q

What is a serious complication that can occur as a result of h pylori infection?

A

Stomach cancer

37
Q

Why do you need to tell the lab that you suspect a case of O157:H7 when you are sending them a specimen?

A

Because using macconkeys sorbitol agar is not automatic.

38
Q

What disease:

“Washerwoman hands”

A

Cholera- due to massive dehydration

39
Q

Who is most likely to get vibrio parahaemolyticus?

A

People who eat fish that was improperly refrigerated

People in Japan

More common in warmer months

40
Q

Can O157:H7 spread from person to person?

A

Yes, since it is such a low-dose pathogen

It’s not just raw hamburgers!

41
Q

What new strain of E. coli is traced to alfalfa sprouts, and causes HUS with a high fatality rate?

A

O104:H4

42
Q

How do you usually end up with vibrio vulnificus?

A

Oysters

43
Q

What is the toxin expressed by enterohemorrhagic E. coli?

A

Shiga-like toxin (SLT)

44
Q

Is it easy to treat h pylori?

A

No, because patient might just get reinfected by his family/contacts
👨‍👩‍👦‍👦

45
Q

Will colonization by vibrio cholerae affect the integrity of your intestinal cells?

A

No, they can still absorb just fine

46
Q

Does O157:H7 require a high or low dose to make you sick?

A

Very low dose

47
Q

What are the 3 ways vibrio vulnificus can get you sick?

A
  1. Wound infection- open wound touching oyster/seawater
  2. Sepsis- raw oysters + liver dysfunction/alcoholism
  3. Acute self-limiting diarrhea - raw oysters
48
Q

How long after consuming cholera-laden water will you have symptoms?

A

1-5 days

49
Q

What kind of food is campylobacter jejuni associatedwith?

A

Poultry products

🍗🐣🐓🦃

50
Q

Is the infectious dose of cholera high or low?

A

High

51
Q

Is cholera easily spread from person to person?

A

No

52
Q

What is the reservoir of campylobacter?

A

Intestinal tract of animals, usually birds

53
Q

How are cholera vaccines administered?

A

Orally

54
Q

Are there any cholera epidemics going on right now?

A

Haiti

Yemen

55
Q

What kind of symptoms will you have if you get Enterohemorrhagic E. coli?

A

Diarrhea that becomes BLOODY after 1-3 days with cramps and vomiting

Possible development of HUS, especially in elderly or very young

56
Q

What is the main feature of cholera?

A

Acute and massive watery diarrhea (1 liter/hour)

57
Q

What is the primary means of prevention of cholera?

A

Proper control of sewage

58
Q

what disease:

“Rice water stools”

A

Cholera

59
Q

What organism is associated with causing bullous lesions and shock in alcoholics?

A

Vibrio vulnificus

60
Q

Which organism is associated with causing Guillain barre?

A

Campylobacter

Micro Exam 1 (Lauren) (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions