Think about both animals
Does your cat settle beside your dog, or try to groom a sore spot? Does your younger dog lie quietly until someone rings the bell? Describe those small details to the vet. The animal receiving care needs space to rest, and the vet needs to be able to reach them. A familiar person can take your other pet to a quiet room if things get busy.
Can they see their companion afterward?
After the vet has confirmed death, ask whether it is safe to let your other pet come closer. If it is, stay with them and leave their way out clear. They may sniff briefly, sit nearby or turn around at the door. Let them choose the distance and leave when they want. A cat who has hidden under the bed can stay there.
What if they never come near?
A brief glance tells us little about what an animal understands. If your dog walks straight back to their water bowl, or your cat stays in another room, you can leave it there. Seeing their companion is optional, and we cannot predict whether it will make the next days easier.
When things feel different at home
Keep familiar meals, walks and quiet time as steady as you can. You may notice your other pet seeking company, sleeping somewhere new or eating differently. If they stop eating, seem unwell or their behaviour worries you, call their regular veterinarian. A change after a loss can also have a medical cause.