Nausea, Diarrhea, and Hydration During Cancer Treatment: A Trend Log

Caregivers monitoring gastrointestinal signs during chemotherapy, targeted therapy, radiation, palliative medication, or recovery, using a plan already set by the veterinary team.

Record timing, intake, vomiting, stool, urination, comfort, and prescribed supportive medicines so the team can intervene early without unsafe home dosing.

Ask for written definitions of mild, same-day, and emergency signs, plus instructions for prescribed “as needed” medicines. Do not substitute human antidiarrheals, antacids, nausea products, leftover antibiotics, herbs, or a new diet without veterinary approval. If instructions conflict, pause and ask the treating clinic to reconcile them; do not choose the instruction that seems easiest.

1. Record treatment and supportive-medicine times before symptoms begin.
2. For each meal, note interest, amount eaten, nausea behaviors, water, and whether food stayed down.
3. Describe vomiting episodes and stool frequency, consistency, color, blood, and urgency without collecting unsafe samples.
4. Record urination, gum moisture only if taught, energy, abdominal pain, and body weight on the agreed schedule.
5. Contact the team at the first clinic-defined threshold rather than waiting for severe dehydration.
6. After advice, document the change in plan and response; never repeat or increase medicine on your own.

Appetite percentage, nausea behaviors, vomiting count, stool pattern, blood or black stool, water intake, urination, body weight, abdominal pain, energy, temperature if directed, and every prescribed supportive medicine. Write observations in neutral terms with date and time. A home log supports clinical decisions but does not authorize a medication change or replace examination, laboratory testing, imaging, or emergency triage.

Call for repeated vomiting or diarrhea, poor intake, blood, black stool, pain, reduced urination, or worsening lethargy. Emergency care is appropriate for inability to keep water down, collapse, severe weakness, a painful distended abdomen, breathing difficulty, or very pale gums. When urgent transport is advised, bring the current medication list and call ahead if that does not delay departure.