After the injection Your pet may appear to gasp or suddenly have a deep breath. Sometimes this may carry on for several breaths. This is a wholly-natural bodily reflex. Your pet will already have died and is not aware of any of this.
As the solution is injected, the animal loses consciousness and within minutes the heart and lungs stop functioning. Since the pet is not conscious, they do not feel anything. Most times, the animal passes away so smoothly, that it is difficult to tell until the veterinarian listens for absence of a heartbeat.
During euthanasia, dogs react mainly to general anxiety, pain caused by underlying disease, brief injection site pain, and sedatives. They can also involuntarily react to the euthanasia solution.
With anesthesia the body becomes ever more relaxed. We may see little quivers of the muscles as they go through cycles of contraction and relaxation. As the muscles of the eyes begin to relax, they can no longer do the work to keep them closed; the eyes usually open and remain so.
It may take a minute or two for the heart to stop. The doctor will listen carefully to your pet's heart to ensure it has stopped before pronouncing him or her gone. After that, there is no danger of your pet waking up. This is a very common fear for pet owners.
Occasionally, a dog may give a small cry as the injection is given – as with all anaesthetics, there is a brief feeling of dizziness as the drug takes effect. Unconsciousness follows within seconds, often before the injection is finished. Death occurs within a couple of minutes when the heart stops beating.
Many times, it's best if you sit with your pet so you can comfort them and keep them calm throughout the process. The vet may choose to give your pet a sedative to prevent them from moving around or fighting to get away from you. In some cases, if the pet is very old or sick, however, this may not be necessary.
Some dogs will know their time is approaching and will look to their people for comfort. Saying goodbye to your dog with love and grace means staying with your dog during these final hours, and reassuring them with gentle stroking and a soft voice.
When a dog is dying, they may experience difficulty breathing, and their breathing may become shallow. You may also notice that your dog seems to struggle to catch their breath, and their breathing may be uneven. The time between each inhale and exhale may become longer.
These changes unfold quickly, over a few days. Your muscles relax. Your muscles loosen immediately after death, releasing any strain on your bowel and bladder. As a result, most people poop and pee at death.
Relaxing occurs naturally after a dog passes away, but contraction does not. This means that although the eyelids may droop, they often do not close completely, as your dog no longer orders those muscles to contract.
Gasping is also referred to as agonal respiration and the name is appropriate because the gasping respirations appear uncomfortable, causing concern that the patient is dyspnoeic and in agony.
Since they may not actually understand death as something permanent, sometimes a dog will wait patiently, believing that the deceased caregiver, will return. Still others believe that the dog may just be reacting to the grief exhibited by humans in the house as they deal with the death of a household member.
Some dogs seek out the comfort and company of their humans to the point of clinginess, while others become more solitary and seek quiet corners to be alone. Some dogs seem to know when they are about to die and wander off to a secluded location in the house or yard for their final moments.
One stage of this process is known as rigor mortis. This is when the energy supply to the pet's muscles deplete. When this occurs, everything becomes stiff. The average time for “rigor” to set in is 3-4 hours and it is typically complete within 12 hours post death.
Give them all the things they enjoy most – their favourite toys, their favourite food. You know what will make your pet feel most at ease in the time that remains. If you become tearful, ask a family member, friend or other trusted person to take care of your pet so you can leave the room and have a cry.
In time, the heart stops and they stop breathing. Within a few minutes, their brain stops functioning entirely and their skin starts to cool. At this point, they have died.
In the last hours before dying a person may become very alert or active. This may be followed by a time of being unresponsive. You may see blotchiness and feel cooling of the arms and legs. Their eyes will often be open and not blinking.
“First hunger and then thirst are lost. Speech is lost next, followed by vision. The last senses to go are usually hearing and touch.”
Feeling sad, shocked, or lonely is a normal reaction to the loss of a beloved pet. Exhibiting these feelings doesn't mean you are weak or your feelings are somehow misplaced. It just means that you're mourning the loss of an animal you loved, so you shouldn't feel ashamed.
Remember the days of joy and happiness and what you shared with them. Your pet knows that you shared many emotions with them through the years, and it is their wish to say good-bye and thank you for the years of loving care you gave them.
Once you're sure your dog has passed, the next step is to call your veterinarian's office. A vet's office will take your dog's body and either dispose of it for you or store it for you before you have a cremation or burial. They might also know of resources like a pet crematory or a mobile vet service.
The dog's heart can't pump blood through the body very well. It leads to coughing, exhaustion, a swollen belly — and eventually, the dog's lungs will fill with fluid, and she will essentially feel as if she is drowning in her own body. We didn't want Barky to experience a terrifying, painful death.
The aging profile of dogs varies according to their adult size (often determined by their breed): smaller dogs often live over 15–16 years (the max is 20 years), medium and large size dogs typically 10 to 20 years, and some giant dog breeds such as mastiffs, often only 7 to 8 years.