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return if worse
Posted on
October 15, 2007
by
reuben
93. Stool occult blood false positives / false negatives
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92. Marker between upper and lower GI tract / Reason blood turns to coffee grounds / Amount of blood required to produce melena
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94. Proportion of LGIB that present with melena / Dx to exclude in hematochezia / % of patients who bleed from same site as previous GIB