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Fecal Occult Blood Testing

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Causes of Fe Deficiency in Industrialized Countries (Average %)

Slide 6

October 2011

Iron deficiency can be caused by an iron-poor diet, malabsorption, non-GI blood loss (which is almost always overt and clinically apparent, such as by menstruation), and GI bleeding (usually chronic occult bleeding). Note that at all age ranges, GI bleeding is a common culprit…in men and postmenopausal women, GI bleeding is overwhelmingly the most common mechanism.

Causes of Fe Deficiency

 


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