What nutrient absorption is most likely affected in a patient post-Billroth II procedure?

The Billroth II procedure involves partial removal of the stomach and reconnection of the remaining portion to the small intestine, which can lead to various changes in nutrient absorption. One key aspect affected is the absorption of calcium and iron.

After this surgical intervention, the alteration in the structure and function of the digestive system affects several factors, including gastric acid secretion. Gastric acid plays a crucial role in the solubilization of minerals such as calcium and iron; without adequate acidity, the absorption of these nutrients can be significantly impaired. Moreover, the duodenum, where a significant amount of calcium and iron absorption occurs, may not be optimally functional post-surgery due to changes in the gastrointestinal tract.

In addition to calcium and iron, the changes in gut anatomy and function can lead to vitamin deficiencies, particularly for nutrients that rely on the presence of stomach acid for absorption, but the primary nutrients of concern in a Billroth II procedure context are calcium and iron. This highlights why this option is particularly relevant in assessing the complications and necessary dietary adjustments following such a procedure.