Q: Copper is absorbed in?
A) Stomach and proximal duodenum
B) Small intestine
C) Transverse colon
D) Sigmoid colon
Copper is absorbed in the stomach and proximal duodenum. Clinical significance of this question is to address the need of elemental supplements post bariatric surgeries like Roux-en-Y gastric bypass (RYGB) or biliopancreatic diversion with duodenal switch (BPD/DS) surgeries. Deficiency of copper leads to microcytic anemia, neutropenia, and ataxia.
1. Griffith DP, Liff DA, Ziegler TR, et al. Acquired copper deficiency: a potentially serious and preventable complication following gastric bypass surgery. Obesity (Silver Spring) 2009; 17:827.
2. Gletsu-Miller N, Broderius M, Frediani JK, et al. Incidence and prevalence of copper deficiency following roux-en-y gastric bypass surgery. Int J Obes (Lond) 2012; 36:328.