Which nursing intervention is essential for a patient receiving chemotherapy for colon cancer and reporting frequent nausea?

Choice A reason: Increasing dietary fats is not recommended for patients experiencing nausea. Fatty foods are slow to digest and remain in the stomach longer, which can worsen feelings of fullness and trigger vomiting. Patients are generally advised to eat small, frequent, low-fat, and bland meals to manage chemotherapy-induced nausea. Choice B reason: Fasting before chemotherapy is not a standard evidence-based intervention for preventing nausea and may lead to malnutrition or weakness. In fact, having a small, light snack before treatment is often better tolerated than an empty stomach, which can sometimes exacerbate the sensation of nausea during medication infusion. Choice C reason: Acidic beverages, such as orange or grapefruit juice, can irritate the gastric mucosa and potentially worsen nausea or mouth sores (stomatitis) often associated with chemotherapy. Clear, cool, non-acidic liquids or ginger-based drinks are typically preferred for their soothing properties and better tolerability during treatment cycles. Choice D reason: The most effective way to manage chemotherapy-induced nausea and vomiting (CINV) is through prophylactic administration of antiemetics. Giving medications like serotonin antagonists (e.g., ondansetron) before the session begins blocks the neurochemical triggers of nausea, leading to much better symptom control and improved patient adherence to the treatment regimen.