Introduction to Infectious Disease: Diarrhea Flashcards Preview

MS2 - Digestive, Endocrine, and Metabolic Systems > Introduction to Infectious Disease: Diarrhea > Flashcards

Flashcards in Introduction to Infectious Disease: Diarrhea Deck (19):
1

What are the top two causes of death from infectious disease worldwide?

(1) Pneumonia
(2) Diarrhea

2

The non-inflammatory vs. inflammatory distinction overlaps perfectly with the ____________ distinction.

non-invasive vs. invasive

3

In terms of stool composition, how can you distinguish between inflammatory and non-inflammatory diarrhea.

Inflammatory: WBCs and RBCs
Non-inflammatory: watery

4

What pathogens are associated with non-inflammatory diarrhea?

Norwalk
Rotavirus
Giardia
Cholera
ETEC

5

What pathogens are associated with inflammatory diarrhea?

Campylobacter jejuni
Shigella
Salmonella
Escherichia coli O157:H7
Clostridium difficile
E. histolytica

6

The most common cause of traveler's diarrhea is ______.

ETEC

7

Two things cause metabolic acidosis in cholera infection: ________________.

(1) poor tissue perfusion – causing lactic acid accumulation – and (2) excess bicarb excretion

8

The leading cause of diarrheal death worldwide is __________.

rotavirus; this happens less in the United States because of rotavirus vaccine

9

What virus normally causes diarrheal illness in older children and adults?

Norovirus

10

The most common symptoms of giardia infection?

Diarrhea
Fatigue
Abdominal pain
Bloating
Flatulence
Malodorous stool

11

The most common cause of hemorrhagic diarrhea in the U.S. is _____________.

EHEC

12

The highest rates of EHEC are in ___________.

young children and the elderly

13

E. coli's reservoir is __________.

the intestinal tracts of cattle

14

True or false: you need to immediately treat EHEC with bactrim.

False. Studies show that antibiotics can increase risk of toxin release. As such, just treat with fluids.

15

True or false: giardia responds to fluoroquinolones.

False.

16

What is the O in O157:H7? The H?

O = oligosaccharide
H = flagella

17

Non-inflammatory, non-invasive diarrhea most often occurs in the ____________.

small intestine

18

The incubation period for cholera is ______________.

18 hrs to 5 days

19

Rotavirus preferentially affects the ______________.

infants and young children

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