A patient who has had a Roux-en-Y gastric bypass is at risk for anemia.

Patient selection: Roux-en-Y gastric bypass


Causes of anemia include:

(1) vitamin B12 deficiency

(2) folate deficiency

(3) iron deficiency

(4) chronic blood loss from ulcerations

(5) copper deficiency

(6) selenium deficiency

(7) vitamin A deficiency


Multiple causes may be present.


Risk factors for anemia:

(1) failure to follow-up with gastric bypass specialists

(2) failure to take vitamin and mineral supplements

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