Which complication is NOT typically associated with a need for parenteral nutrition during chemotherapy?

Parenteral nutrition is used in situations where a patient's gastrointestinal tract is not functioning properly or cannot meet nutritional needs, particularly during aggressive treatments like chemotherapy. While all the options listed may suggest complications that can arise during chemotherapy, hydration issues stand out as not being a direct complication necessitating parenteral nutrition.

Colitis, typically a result of inflammation often seen during chemotherapy, can severely affect a patient's ability to absorb nutrients, leading to scenarios where parenteral nutrition would be required to ensure adequate nourishment. Pancreatitis, on the other hand, can result in digestive complications that also hinder nutritional intake, making it another situation where parenteral nutrition might be indicated. Intestinal graft-versus-host disease (GVHD) creates a similar scenario, where damage to the intestines impacts nutrient absorption, warranting parenteral nutrition.

Hydration issues, while potentially problematic during chemotherapy, do not inherently require the use of parenteral nutrition specifically. They can often be managed through other supportive therapies, making it less directly linked to the need for nutrition delivered outside of the gastrointestinal tract. Therefore, this option is correctly identified as not typically leading to a necessity for parenteral nutrition.