Basic Guide to Pet First Aid — CPR, Choking, and Bleeding Response

ImmunityQ&AMeongsiljang Veterinary Advisory Board

We’ve compiled the basic principles of first aid that pet owners can perform before visiting a veterinary clinic, along with situation-specific response guidelines, in case your pet experiences a sudden accident or health issue.

Basic Principles of Pet First Aid You Must Know

A pet owner preparing an emergency kit by their pet’s side

Pet first aid refers to the basic life-saving actions owners can perform on their own when an accident or sudden health issue occurs, before reaching a veterinary clinic. The most important thing is to stay calm and assess the situation step by step, following the order of securing the airway, checking breathing, and then checking circulation (pulse). In veterinary emergency medicine, this rapid initial assessment of the patient is called a "primary survey," with the highest priority given to securing the airway and breathing, and controlling bleeding. In particular, if cardiac arrest occurs, survival depends on recognizing it as quickly as possible and immediately starting cardiopulmonary resuscitation (CPR), so it is truly important for owners to learn these basic principles in advance.

These Are Emergency Situations

Knowing in advance which situations are emergencies can help you make quick decisions.

Sudden loss of consciousness: Your pet does not respond when called or touched, and their eyes appear unfocused.

Difficulty breathing: Your pet is breathing hard with an open mouth, or their gums and tongue have turned blue.

Severe bleeding: Blood continues to flow from a wound and does not stop.

Choking: Your pet is coughing or struggling to breathe because something is stuck in their throat.

Seizures: Your pet loses consciousness while their body stiffens or their limbs tremble.

Poisoning: Your pet has ingested toxic substances such as chocolate, xylitol, or grapes.

If any of these symptoms occur, provide first aid and contact the nearest veterinary clinic immediately.

Emergency Assessment Sequence — ABCD Protocol

When an emergency patient arrives at the clinic, we first conduct a primary survey to assess the airway (A), breathing (B), circulation (C), and disability (D) in that order. Pet owners can also quickly grasp the situation by checking these same steps.

Step	Check Item	How to Check
A (Airway)	Whether the airway is open	Check for foreign objects in the mouth
B (Breathing)	Whether breathing is present	Observe chest movement and place a hand near the nose
C (Circulation)	Whether a heartbeat is present	Place a hand on the left side of the chest, near the armpit
D (Disability)	Level of consciousness	Call the pet’s name and stimulate the paw pad

How to Perform CPR

If your pet’s heart stops, begin CPR immediately. According to veterinary emergency medicine textbooks, even when the cause of cardiac arrest can be reversed right away, the success rate of CPR is relatively low, at approximately 3–28%. This underscores how critical prompt action is for survival.

Chest compression site: For dogs, lay them on their side and compress the widest part of the chest. For cats, lay them on their side and encircle the thoracic wall with two fingers or one hand to apply circumferential compression. Given their smaller size, take special care to control the force applied.

Compression rate: Compress at a rate of 100–120 times per minute, to a depth of one-third to one-half the width of the chest.

Rescue breathing: Close the mouth, place your mouth over the nose, and blow gently until the chest rises slightly.

Compression and breathing technique: Maintain continuous compressions with minimal interruptions. Switch the person performing compressions every two minutes, and deliver rescue breaths in between.

Do not stop CPR while transporting your pet to the veterinary hospital.

Demonstrating chest compressions on a puppy

In These Situations, Go to the Clinic Before First Aid

If your pet is experiencing uncontrolled bleeding, rapid abdominal distension (suspected gastric dilatation-volvulus), inability to move after a traffic accident, or seizures following ingestion of a toxic substance, these are situations that are difficult for owners to manage on their own. Keep your pet as still as possible, wrap them in a blanket to maintain body temperature, and transport them immediately to a 24-hour emergency veterinary hospital.

How to Respond to Choking (Airway Obstruction)

When a dog or cat swallows something and it gets stuck in their throat, they will initially try to cough it up. If coughing alone doesn’t resolve the issue, the owner needs to intervene.

Check the mouth: Open the mouth and if you can see the foreign object, remove it carefully. If you can’t see it, do not insert your fingers deeply.

Heimlich maneuver (for small dogs and cats): Hold the animal with its back facing upward, then quickly apply upward pressure on the abdomen just below the ribcage.

Large dogs: Lay the dog on its side and firmly push the area behind the ribcage with the palm of your hand.

Even if the object is expelled, the airway lining may have been damaged, so it’s essential to have your pet checked by a veterinarian.

First Aid for Bleeding and Trauma

Stop bleeding: Apply direct pressure to the wound with clean gauze or cloth. Keep steady pressure until the bleeding stops; it’s important not to lift the gauze to check in between.

Scratches and minor wounds: Rinse away debris with sterile saline or running water, then lightly cover the area with gauze.

Suspected fracture: Do not try to realign the broken bone. Immobilize the area with a towel or splint to prevent movement, then transport your pet to the clinic.

Burns: Cool the area thoroughly with lukewarm running water, then cover with gauze. Avoid applying ice or ice water directly to the burn.

All injuries carry a risk of infection, so please seek veterinary care after providing first aid.

Wrapping a gauze bandage around a puppy’s front paw

Actions to Absolutely Avoid During First Aid

Forcing water or medication into an unconscious pet can cause it to enter the airway and lead to choking. If your pet has ingested a toxic substance, inducing vomiting on your own can damage the esophagus, so always follow your veterinarian’s instructions. Additionally, applying human ointments or disinfectants like hydrogen peroxide to wounds can irritate the skin and damage tissue, making it a dangerous practice.

Emergency Kit: Prepare Only These Items

Having an emergency kit ready in advance allows you to respond quickly and calmly in stressful situations.

Gauze and bandages: Essential for controlling bleeding and protecting wounds.

Medical tape: Used to secure bandages in place.

Sterile saline solution: Keep on hand for cleaning wounds.

Disposable gloves: Help prevent infection when treating injuries.

Blankets or towels: Useful for maintaining body temperature and immobilizing fractures.

24-hour emergency veterinary clinic contacts: Save the contact information for clinics near your home and along your usual travel routes.

Pet health record: Keep a summary of existing conditions and current medications so you can quickly share this information with the veterinarian during an emergency.

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

Is cardiopulmonary resuscitation (CPR) for pets performed in the same way as for humans?

The basic principles are similar, but the specific techniques differ. For dogs and cats, you should lay them on their side, perform chest compressions, and give rescue breaths through their nose. Since the correct compression site varies depending on body shape, it’s a good idea to learn pet-specific CPR in advance.

Should I induce vomiting at home if my dog eats chocolate?

Inducing vomiting on your own can damage your pet’s esophagus. The safest course of action is to check how much chocolate was ingested and your pet’s weight, then contact a veterinary clinic immediately for professional guidance.

Can the Heimlich maneuver be used on cats?

Yes, you can apply a similar method as for small dogs. Hold the cat with its back facing upward, then quickly press upward on the abdomen just below the ribcage. However, since cats are smaller, it's important to control the amount of pressure you apply.

What should I do if I suspect heatstroke?

Move your pet to a cool area and gently dampen their body with lukewarm water to gradually lower their body temperature. Avoid using ice-cold water or ice, as sudden extreme cooling can be harmful. If their temperature does not come down, seek immediate veterinary care.

Can I include human-grade antiseptics in the emergency kit?

Human antiseptics like hydrogen peroxide or alcohol can irritate your pet’s skin and mucous membranes, so we don’t recommend using them. It’s safer to clean the wound with sterile saline and use a veterinarian-prescribed antiseptic.

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References

[1] Silverstein DC, Hopper K. Small Animal Critical Care Medicine. 3rd ed. Elsevier; 2023.

[2] Little S. The Dog Care Handbook: Things I Wish My Vet Had Told Me. 2024.

[3] Drobatz KJ, Reineke E, Costello MF, Culp WTN. Feline Emergency and Critical Care Medicine. 2nd ed. Wiley; 2024.