IBD/diverticular/toxic mega Flashcards

1
Q

where does UC affect

A

colon

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2
Q

where does crohns affect

A

can do whole GI tract

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3
Q

smoking and IBD

A

increases chance of crohns

reduces risk of UC

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4
Q

mental that may influence IBD

A

stress and depression can preceed episodes

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5
Q

difference in location pattern of UC and crohns

A

crohns - skip lesions

UC - continuous

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6
Q

what is cobblestone appearance

A

deep ulcers and fissures in crohns

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7
Q

where is the inflammation in crohns

A

transmural

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8
Q

transmural

A

across the entire wall of an organ or blood vessel

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9
Q

where does UC begin

A

rectum and extends

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10
Q

feature of UC lumen

A

red mucosa and bleeds easy

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11
Q

where is the inflammation in UC

A

mucosal

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12
Q

which IBD has a high chance of granulomas

A

crohns

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13
Q

microscopic findings of UC

A

Goblet cell depletion

Crypt abscesses

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14
Q

what is IBD

A

innapropriate immune response to things in the lumen

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15
Q

in the IBD pathophys which cells take over

A

effector T cells predominating over regulatory T cells.

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16
Q

what do the effector T cells release

A

proinflammatory cytokines

17
Q

what do the proinflmmatory cytokines do

A

promote macrophages to release TNF

18
Q

most common site for crohns

A

ileocaecal

19
Q

colon crohns symptoms

A

diarrhoea, bleeding and pain related to defecation

20
Q

UC presentation

A

diarrhoea, often containing blood and mucus

21
Q

why might you see anaemia on blood test

A

normocytic normochromic anaemia of chronic disease

or cant absorb B12

22
Q

Crampy abdominal pain relieved by defecation or wind

A

IBS

23
Q

common symptoms of IBS

A

altered bowel habit, a sensation of incomplete evacuation, abdominal bloating

24
Q

diverticular formation

A

mucosa extrude through the colonic muscular wall

25
Q

where are there weakened areas where diverticular can form

A

weakened areas near blood vessels

26
Q

cause of diverticular disease

A

low fibre diet

27
Q

diverticular symptoms

A

pain and constipation and bleeding

28
Q

what does diverticulitis present with

A

left iliac fossa pain
fever and nausea
fistula into bladder

29
Q

blood supply to colon

A

superior and inferior mesenteric arteries

30
Q

area in colon most susceptible to ischemia

A

splenic flexure

cecum

31
Q

what is toxic megacolon

A

extreme dilation of the GI tract

32
Q

what is a big risk with toxic megacolon

A

perforation