“Nearly 14 years ago, my daughter and I were grieving the death of my mother, and it seemed nothing could lift our spirits. Then we got Fluffy, a bouncing bundle of gray and white puppy, and everything changed.

Fluffy kept us busy with pee pads and squeaky toys. She made us laugh in spite of our sadness, and the gray clouds of grief began to recede.

Over the years, our 10-pound fluff ball was a constant in our lives. We dressed her up in holiday sweaters, celebrated her birthdays and scolded her for sneaking food from the cat’s dish. But in recent weeks, as our walks slowed down and her naps grew longer, it became clear that our time together was limited. I hoped that in the end, Fluffy would have a natural death, drifting off to sleep for good on her favorite soft pillow.

A natural death is what many of us hope for with our pets. They are members of our family, deeply enmeshed in our lives, and for many of us, thoughts of euthanasia seem unfathomable, so we cling to the notion that a natural death is desirable.

 But my veterinarian advised me that my end-of-life scenario for my dog wasn’t realistic. In most cases, a natural death, she told me, means prolonged suffering that we don’t always see, because dogs and cats are far more stoic than humans when it comes to pain.

Dr. Alice Villalobos, a nationally recognized oncology veterinarian based in Hermosa Beach, Calif., said that many pet owners idealize a natural death without thinking about what a “natural” death really means. A frail animal, she noted, doesn’t linger very long in nature.

“When animals were domesticated they gave up that freedom to go under a bush and wait to die,” said Dr. Villalobos. “They become very quickly part of mother nature’s plan due to predators or the elements. And yet in our homes we protect them from everything so they can live a long time — and sometimes too long.”

Dr. Villalobos has dedicated her career to helping pet owners navigate end-of-life issues. She created an animal hospice program she calls “pawspice.” She coined the name because she doesn’t want to confuse end-of-life care for animals with the choices we make for human hospice.

Her program is focused on extending a pet’s quality of life. That might mean treating a cancer “in kind and gentle ways,” she said. It can mean supportive care like giving fluids, oxygen or pain medication. In some cases, it might mean hand-feeding for frail pets or carrying an animal to a water dish or litter box. And finally, she said, it means a “well death.”

Dr Villalobos has advocated what she calls “bond-centered euthanasia,” which allows the pet owner to be present and play a comforting role during the procedure. She has also championed sedation-first euthanasia, putting the animal into a gentle sleep before administering a lethal drug.

To help pet owners make decisions about end-of-life care, Dr. Villalobos eveloped a decision tool based on seven indicators. The scale is often called the HHHHHMM scale, based on the first letter of each indicator. On a scale of zero to 10, with zero being very poor and 10 being best, a pet owner is asked to rate the following:

• Hurt: Is the pet’s pain successfully managed? Is it breathing with ease or distress?

• Hunger: Is the pet eating enough? Does hand-feeding help?

• Hydration: Is the patient dehydrated?

• Hygiene: Is the pet able to stay clean? Is it suffering from bed sores?

• Happiness: Does the pet express joy and interest?

• Mobility: Can the patient get up without assistance? Is it stumbling?

• More: Does your pet have more good days than bad? Is a healthy human-animal bond still possible?

Dr. Villalobos says pet owners should talk to their vet about the ways they can improve a pet’s life in each category. When pet owners approach end of life this way, they often are surprised at how much they can do to improve a pet’s quality of life, she said.

By revisiting the scale frequently, pet owners can better assess the quality of the pet’s hospice care and gauge an animal’s decline. The goal should be to keep the total at 35 or higher. And as the numbers begin to decline below 35, the scale can be used to help a pet owner make a final decision about euthanasia.

“Natural death, as much as many people wish it would happen, may not be kind and may not be easy and may not be peaceful,” Dr. Villalobos said. “Most people would prefer to assure a peaceful passing. You’re just helping the pet separate from the pack just as he would have done in nature.”

I discovered Dr. Villalobos’s scale as I was searching for answers for Fluffy in her final weeks. When she did get up, she often stumbled and seemed confused. Sometimes at night, I heard her whimper.

I had reached out to two at-home vet services, VettedPetCare.com and Instavet.com, that both offered compassionate guidance and confirmed my fears that no treatments were available to improve her condition. Fluffy was a very old dog, and they suspected her decline was a result of some combination of kidney and liver failure, but discouraged extensive testing since the physical symptoms were obvious. One visiting vet gave Fluffy subcutaneous fluids to help with dehydration and make her more comfortable and advised me to spend a final happy day with my dog before calling her for a final visit to end her suffering.

I trusted her judgment, but my tears and the fact that Fluffy still ate a little and wagged her tail when I stroked her clouded my thinking. I turned to the end-of-life scale and was able to see how poorly she was doing, despite the tail wag. I took my vet’s advice and spent a quiet day with Fluffy, giving her the cat food treats she so loved, without any scolding. I revisited the scale several times, just to remind myself that I was doing the right thing. The scale allowed me to make a more detached assessment of Fluffy, and it was a tremendous source of comfort during a very difficult time.

It wasn’t an easy decision or a pleasant one. But it was the right decision. And in the end just as I had hoped.”

Text by Tara Parker-Pope, for the NY Times.

Selected by Lula May Reed.