Caring for a pet with heart disease - a practical home checklist

March 28, 2022 · Updated September 26, 2026 · Pet Health · By Collar.pet

Heart disease is not one single condition, and care differs between pets. Your veterinarian’s plan should guide medicines, diet, activity and follow-up. Do not start a low-salt diet, restrict activity, add supplements or change medicine because of general advice online.

Keep the care plan clear

• Store a current medicine list with the name, dose as prescribed, timing, refill details and the practice’s contact number.
• Use a tick chart or phone reminder so every dose is recorded and accidental repeat doses are less likely.
• Keep planned rechecks and tests. Ask what each visit is checking and whom to call if a dose is missed or medicine runs out.
• Ask the vet what food, treats, exercise and temperature limits apply to your pet’s diagnosis. Get the advice in writing if several people help with care.
• Track appetite, energy, coughing, breathing during rest and any change in walking or play. Share the pattern rather than relying on memory.

The Cornell heart-disease guide lists breathing changes, weakness, low energy, exercise intolerance and collapse among signs to discuss with a veterinarian. If your pet is struggling to breathe, collapses or suddenly becomes very weak, contact an emergency veterinary service now.

Questions for the next appointment

1. What change should make me call the same day, and what is an emergency?
2. Is there a breathing or activity measure you want me to record at home?
3. What should I do if a dose is late, vomited or accidentally given twice?
4. When should we review the plan, and is a specialist referral appropriate?

Keep this information with the carrier or emergency kit in case another person needs to help. A written log supports the veterinary team; it does not replace examination or monitoring.