Lower GI Bleeds Clinical Lecture Flashcards Preview

GI--Wk 5 > Lower GI Bleeds Clinical Lecture > Flashcards

Flashcards in Lower GI Bleeds Clinical Lecture Deck (12)
Loading flashcards...
1
Q

Diverticular bleeding is often from this source

A

arterial bleeding

arteries go through colon wall where where diverticula form (weakness in wall)

2
Q

Ischemic colitis presentation

A

acute onset of pain

self-limited hematochezia

3
Q

Ischemic colitis most often occurs here

A

watershed area of SMA and IMA

splenic flexure

4
Q

Why does the hepatic flexure not often become ischemic?

A

if it did, that would be an SMA occlusion and would be bad for the entire midgut

5
Q

Tx of ischemic colitis

A

observation

fluids to increase volume –> improve perfusion

6
Q

Etiologies of ischemic colitis

A

non-occlusive: hypotension

occlusive: thrombi

7
Q

Neoplasm

left vs right colon

A

left: obstruction (firmer stool)
right: anemia

8
Q

Radiation proctitis

most commonly from

A

prostate cancer treatment

9
Q

Hemorrhoids become painful when they

A

thrombose

10
Q

Solitary rectal ulcer etiologies

A

puborectalis muscle spasm, rectal prolapse, constipation, 4th decade of life

11
Q

Diveritcular bleeding

what % of people with diverticulosis

A

33% ie 1/3

12
Q

Tx of diverticular bleeding

A

observe
80% of time is self-limited
banding if needed