GASTROINTESTINAL BLEEDING
GASTROINTESTINAL BLEEDING
GASTROINTESTINAL BLEEDING
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2 Perform history and physical exam<br />
and stool exam<br />
•定位 source 最重要因素靠 blood loss 的 nature.<br />
•Hemaiemesis 是因 upper GI bleeding. 而 Stool quality 提<br />
供 blood loss 位置的 clues.<br />
•Stool quality (black, maroon, or bright red) 依’量’,’速度’,’<br />
位置’,’transit time’而定.<br />
•長的’transit time’的血會變成 black (melena),是因 acid<br />
breakdown blood.
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