First, read the English article below.

If your cat vomits after eating the night you bring it home from surgery, remove the food. Try feeding a small amount of food again the next morning. If your cat vomits again, or if it has diarrhea, call your vet. For 7-10 days after surgery, check your cat’s incision site every morning and night. Compare its appearance to the incision site on the first day after surgery to judge how your cat is healing. Call your veterinarian if you observe any of the following:   Redness. The incision may initially be pink or light red around the edges. This redness should fade with time. If it intensifies or the incision appears dark red at any time, this could be a sign of a developing infection.  Bruising. Some slight bruising that goes from red to purple as it heals is normal. If the bruising spreads, gets, worse or is severe, or if new bruising occurs, however, you should seek follow-up care right away.  Swelling. Some swelling around the incision site is a normal part of healing, but if the swelling persists or worsens, you should call your veterinarian.  Discharge. You may see a very small amount of light red discharge around the incision when you bring your cat home. This can be normal, but if the discharge persists for more than a day, the amount of discharge increases, the discharge is bloody or the discharge is green, yellow, white or foul smelling, your cat needs veterinary attention.  Separation of the wound edges. In a male cat, the scrotal incisions will be open, but they should be small, and they should close rapidly. A female cat or a male that had abdominal surgery may or may not have visible stitches. If the cat has visible stitches, these should remain intact. If the cat does not have visible stitches, the wound edges should remain closed. If they start to separate or you notice anything, including suture material, protruding from the wound, take the cat to your veterinarian right away. Your cat’s gums should be pale pink to red in color. When you press lightly on the gum and then let go, the color... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Quan sát dấu hiệu nôn mửa. Kiểm tra vết mổ mỗi buổi sáng và ban đêm. Kiểm tra nướu răng của mèo. Tìm dấu hiệu của cơn đau. Theo dõi dấu hiệu cảnh báo khác. Liên hệ với bác sĩ thú y cấp cứu. Tiến hành các cuộc hẹn theo dõi.