Which factor after GI surgery may impact absorptive function due to residual disease in the remaining intestine?

Which factor after GI surgery may impact absorptive function due to residual disease in the remaining intestine?

• A. Bowel length
• B. Residual disease in the remaining intestine
• C. Absence of colon and/or ileocecal valve
• D. Prior gastric resection

Answer: (B)

Residual disease in the remaining intestine can directly disrupt absorption because diseased mucosa doesn’t absorb nutrients, fluids, or electrolytes effectively. Inflammation, ulceration, fibrosis, or edema in the remaining bowel reduces the surface area and impairs transporter function, so even a length of bowel that seems adequate may not absorb properly. This explains why residual disease is the factor most likely to impact absorptive function after GI surgery. Bowel length matters because less surface area generally means less absorption, but it’s a structural factor rather than disease in the mucosa. Absence of colon and/or ileocecal valve alters fluid and electrolyte handling and transit, yet again it’s a structural/anatomical change rather than residual mucosal disease. Prior gastric resection changes digestion and the absorption of certain nutrients (like B12 and iron) in the upper GI tract, not the absorptive capacity of the remaining intestinal mucosa itself.

Residual disease in the remaining intestine can directly disrupt absorption because diseased mucosa doesn’t absorb nutrients, fluids, or electrolytes effectively. Inflammation, ulceration, fibrosis, or edema in the remaining bowel reduces the surface area and impairs transporter function, so even a length of bowel that seems adequate may not absorb properly. This explains why residual disease is the factor most likely to impact absorptive function after GI surgery.

Bowel length matters because less surface area generally means less absorption, but it’s a structural factor rather than disease in the mucosa. Absence of colon and/or ileocecal valve alters fluid and electrolyte handling and transit, yet again it’s a structural/anatomical change rather than residual mucosal disease. Prior gastric resection changes digestion and the absorption of certain nutrients (like B12 and iron) in the upper GI tract, not the absorptive capacity of the remaining intestinal mucosa itself.