Any changes in breathing should be concerning, you should keep a close eye on Lucy to see if it passes; if it seems like she is having difficulty getting enough oxygen or her gums are pale you should visit a Veterinarian immediately. Infections, laryngeal disorders, airway obstructions, tumours, poisoning, anaemia among other causes may cause respiratory difficulties. Regards Dr Callum Turner DVM
Four of the five species of the big cats (the Panthera genus – lion, tiger, leopard, jaguar and snow leopard), the exception being the snow leopard can hybridize with each other to produce numerous hybrids. In fact, breeding of two different pantheras to produce hybrid big cats has been banned in many zoos and animal sanctuaries due to no conservation value of the hybrid, and the risk it poses on the mother that gives birth to it.
It all depends on the underlying cause; poisoning would be a concern for the sudden onset of these symptoms in a short time frame in a young cat, however without examining Buffy I cannot be certain of the underlying cause. You should try to rinse out her mouth with plain water and try to keep her still, if you have an Emergency Veterinarian open near you, you should visit regardless of distance and cost. Regards Dr Callum Turner DVM
Russian Blues have a tolerant nature toward children who treat them kindly and respectfully. They will even put up with the clumsy pats given by toddlers, as if they recognize that no harm is meant, and if necessary they will walk away or climb out of reach to escape being bonked on the head. That said, the patient and gentle Russian Blue should always be protected from rough treatment, so always supervise very young children when they want to pet the cat.
Thoracic drainage tubes to remove fluids from the pleural cavity. Local anesthesia and IV sedation are administered to keep your cat comfortable during this procedure. Tubes will be flushed several times a day with 0.9% saline or lactated Ringers solution warmed to body temperature to wash the chest cavity (pleural lavage). Tubes will need to remain in place for between 4-6 days.
There are several possible ways cats can develop pyothorax. In many cases, the initial cause may remain undetermined. Some causes include bite wounds, trauma, inhalation of an object such as a grass awn, bacteria ascending from the mouth, diffusion of bacterial infection, parasitic migration, perioperative aspiration, tumours, ruptured abscess and lung lobe torsion.
During the summertime, a quick bath can prevent excessive shedding. Regular brushing staves away periodontal diseases. Vets recommend brushing your cat’s teeth at least once a day. Using a cat-safe nail clippers, trim your pet’s claws at least once every few weeks or so. Don’t forget to pay attention to the ears and the eyes at least once a week. Brush at least once per week to get rid of loose hair and to lessen the chances of fur balls getting stuck inside your cat’s stomach.
Pulmonary edema is the buildup of fluid in the within these air sacs leading to shortness of breath. Located in the lungs are thousands of air sacs (alveoli) which are small balloon-like structures where the exchange of carbon dioxide and oxygen occurs. Tiny capillaries surround the alveoli on the outside. When the cat breathes in, air enters the lungs, causing the alveoli to expand. Oxygen passes from the alveoli and into the capillaries, carbon dioxide from the capillaries pass into the alveoli and is exhaled out. The most common causes of pulmonary edema relate to problems with the heart, such as hypertrophic cardiomyopathy. Heart diseases can lead to reduced movement of blood through the capillaries in the lungs. As the blood flow slows, fluid leaks out of the vessels into the airways. 
If a cat’s resting respiratory rate exceeds 40 breaths per minute you should visit your Veterinarian; there are many causes for an increase in respiratory rate which may include infections, pain, heart disease, liver disease, parasites among many other conditions. Whilst you should keep an eye on her, I would still recommend visiting a Veterinarian sooner rather than later to be on the safe side. Regards Dr Callum Turner DVM
We can only recommend you to take your kitty to the vet. It seems like s/he still has an appetite, which is a good sign, but panting might be an indicator for something else. Are there any other signs of discomfort? Salivating or does s/he have blue gums? Whether yes or no, you might want to go get a check-up to make sure everything is safe. A veterinarian will know how to guide you and recommend treatment if there is an underlying medical issue. Best of luck!
What's wrong with my poor gravy? My cat Gravy has become extremely affectionate today and has followed me outside 3x, where he never ever goes! He's following me like a shadow and meowing at me more than normal. He doesn't seem to be in any pain, but his breathing and change of demeanor have me concerned. He's breathing fairly rapidly thru his nose, and he is moving his tail a lot also acting maybe as if he is worried?
My cat, Halia, is breathing heavily. However, she has mammary tumours which had reoccurred after prior removal of earlier tumours. On her second visit for the new tumours, it was found that the growth has spread to her lungs. The vets told me that any course of treatment at this stage will not be advisable or productive given that her tumours returned after only 2 months, and they are spreading very aggressively.
My cat has began to be really affectionate. than started meow more and more often, noticed blood and i called vets, they said i can wait till next day for appointment as it doesn't seem to be serious. Right now she is started rapidly breathe and walks back and forth from my room to next room and getting comfy in the sheets. i know it could be signs of pregnancy, and her nipples are slightly swollen. but i only just noticed today and all been developing within the past 5 hours.
At the top of the list we find the Savannah F-1. This cat is HUGE. Its a bit of a cheater, its a domestic cat, but with a wild background. A Siamese cat was crossbred with an African (wild) Serval cat. This breed has only recently been accepted as an official breed, and its probably the large domestic kitty around. The Savannah can get as big as a good sized dog and you better not mess with this puss. Unlike many other cats, Savannah’s usually love water, can be walked on a leash and come close to dogs in behavior. Most Savannah owners report that they are very gently and loyal companions, but don’t forget that this domestic cat can still be “wild” at heart. Not bad for a house cat!
Solid black Chausies may have faint tabby markings (called ghost markings) as kittens, but usually acquire a dense, even black pigmentation with maturity. Sometimes black grizzled tabby Chausies will appear indistinguishable from solid black Chausies when the amount of grizzling is minimal. Exposure to strong sunlight, as with most black cats, can cause black Chausies to lighten slightly and appear brownish.
Thank you for your email. Since Tortie was just seen by your veterinarian and was deemed healthy, her periodic bouts of rapid breathing may be normal, and may follow bouts of exertion or anxiety. If the periods that she is breathing rapidly become more frequent, or more severe, it would be a good idea to have her seen by your veterinarian and examined to make sure that she is okay. It might be helpful to video the episode, since she doesn't seem to breathe that way when she is at an appointment. I hope that she is okay!