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Infectious Disease > Gastroenterology > Flashcards

Flashcards in Gastroenterology Deck (28):
1

Normal Flora (esophagus & stomach)

surviving bacteria from food

2

Normal Flora (small intestine)

lactobacillus, enterococcus (E.Coli)

3

Normal Flora (large intestine)

E. Coli
Clostridium, Bacteroides
Candida

4

Gastritis

Bacterial: H pylori
Hx: Dyspepsia, abdominal pain
PE: Diffuse tenderness
Tx: Eradicate, treat cause

5

Peptic Ulcer Disease

Bacterial: H. Pylori
Disruption of mucosa
Tx: eradicate, abx & ppi

6

acute cholecystitis

Bacterial: enterobacteriaceae
*bile duct obstruction
Hx: RUQ pn, F/C/N/V
Test: WBC
TX: anagesics, IV abx, surgery

7

hepatitis

Viral: hepatitis A, B, C; mono
○ Hepatitis A/E are fecal-oral
○ B,C,D parenterally or mucous membrane
Toxins: alcohol
Hx: Fatigue, malaise
PE: Jaundice
Tests: Serology
Tx: Acute viral hep A supportive

8

hepatic abscess

Bacterial: Enterobacteriaceae
*biliary tract source
Hx: nonspecific
PE: normal --> jaudice, RUQ pn, fever
Tx: IV abx, admin

9

acute pancreatitis

viral, bacterial, fungal
*biliary tract disease
*eoth
Hx: diffuse upper abd pn --> back/flank, F/N/V
Tx: IV abx, admin

10

appendicitis

bacterial: enterobacteriaceae
*luminal obstruction
Hx: 1-anorexia, 2-abd pn periumbilical --> RLQ 3-N/V, diarrhea or constipation
Tx: surgery, SG

11

diverticulitis

Hx: LLQ pn, tenderness, fever
Tx: bed rest, abx

12

secretory diarrhea

large volume w/o inflammation

13

inflammatory diarrhea

bloody w/fever
*invasive organisms or IBD

14

antibiotic associated diarrhea

clostridium difficile colitis

15

infectious diarrhea tests

WBC in stool
bacterial cultures
parasite microscopy

16

diarrhea - norovirus

source: food, h2o, p2p
onset: 1-3d; duration 1-2d
F/N/V; watery
Tx: h2o

17

diarrhea - rotavirus

source: p2p
onset: 1-3d; duration 5-8d
F/N/V; watery
Tx: h2o

18

diarrhea -staphylococcus aureus (toxin)

source: food after cooking
onset: 1-7hr; duration 1-2d
N/V; crampy, mild
Tx: supportive

19

diarrhea - clostridium perfringens (toxin)

source: food before cooking
onset: 8-14hrs; duration: 24hrs
crampy, watery
tx: supportive

20

diarrhea - vibrio spp. (cholera)

source: h20
onset: 2-3d; duration: days
some N/V; profuse, water
tx: h2o, tetracycline, macrolide, fluoroquinolone

21

diarrhea - enterotoxic E. coli

source: food
onset: 5-15d; duration: 1-5d
some N/V, low F; crampy, water
Tx: h2o, bismuth/loperamide

22

diarrhea - giardia lamblia

source: h2o, p2p
onset: 5-25d; duration: until tx
N; bloating
Tx: metronidazole

23

diarrhea - cryptospordia

source: h2o, outbreaks
onset: 2-10d; duration: 30d
N/V; water
Tx: supportive

24

diarrhea - salmonella

source: poultry
onset: 6-72hrs; duration: 4-7d
F/N/V; purulent
Tx: h2o

25

diarrhea - enterohemorrhagic E. Coli (invasive)

source: under-cooked ground beef
onset: 12-60hrs; duration: 5-10d
F; purulent, blood, crampy
Tx: supportive, no abx

26

diarrhea - shigella (invasive)

source: fecal-oral
onset: 1-6d; duration: 1-7d
F; purulent, blood, crampy
tx: supportive, cipro

27

diarrhea - campylobacter (invasive)

source: under-cooked poultry
onset: 2-5d; duration: 2-5d
F, some N/V; purulent, blooding, crampy
Tx: supportive, cipro or azithromycin

28

diarrhea - empiric

source: travelers
duration: 1wk
blood, purulent
Tx: cipro