Which GI toxicities are commonly observed in the first 2–3 weeks after stem cell transplant that may preclude enteral nutrition?

Which GI toxicities are commonly observed in the first 2–3 weeks after stem cell transplant that may preclude enteral nutrition?

• A. Nausea, vomiting, delayed gastric emptying, and diarrhea.
• B. Headache and dizziness.
• C. Hypertension.
• D. Rash.

Answer: (A)

Early after stem cell transplant, the GI tract is highly vulnerable to toxicity from conditioning regimens. The most common GI toxicities in the first 2–3 weeks that can preclude enteral nutrition are nausea, vomiting, delayed gastric emptying (gastroparesis), and diarrhea. Nausea and vomiting reduce oral intake and raise the risk of aspiration, making it hard to support nutrition by mouth. Delayed gastric emptying means feeds may sit in the stomach, increasing intolerance and aspiration risk, which often necessitates withholding or slowing feeds. Diarrhea leads to significant fluid and electrolyte losses and can rapidly render enteral feeding difficult to tolerate or effective. Collectively, these symptoms reflect mucosal injury and motility disruption caused by the conditioning regimens and early post-transplant environment, which is why enteral nutrition is commonly halted or limited during this window. Headache and dizziness, hypertension, and rash are not the primary GI toxicities that typically prevent enteral nutrition in this early period, as they do not directly indicate impaired GI tolerance to feeds.

Early after stem cell transplant, the GI tract is highly vulnerable to toxicity from conditioning regimens. The most common GI toxicities in the first 2–3 weeks that can preclude enteral nutrition are nausea, vomiting, delayed gastric emptying (gastroparesis), and diarrhea. Nausea and vomiting reduce oral intake and raise the risk of aspiration, making it hard to support nutrition by mouth. Delayed gastric emptying means feeds may sit in the stomach, increasing intolerance and aspiration risk, which often necessitates withholding or slowing feeds. Diarrhea leads to significant fluid and electrolyte losses and can rapidly render enteral feeding difficult to tolerate or effective. Collectively, these symptoms reflect mucosal injury and motility disruption caused by the conditioning regimens and early post-transplant environment, which is why enteral nutrition is commonly halted or limited during this window.

Headache and dizziness, hypertension, and rash are not the primary GI toxicities that typically prevent enteral nutrition in this early period, as they do not directly indicate impaired GI tolerance to feeds.