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. 
My cat developed rapid labored respirations a week ago, the vet diagnosed lung cancer and he also had bladder infection. On xray he had consolidated whitish area with scattered crystal like areas. He was given antibiotics for infection and a steroid injection the vet said to temporary help with the breathing but he said my pet did not have long to live. He is breathing less labored and his rate fluctuates between 60-80/min. question is could this be something else instead of cancer-fungal, parasite? I do feed stray cats and even though he is mainly indoor cat I do take him out when I'm outside and he has gone under shrubs and maybe has sniffed something?
Feeding tamed big cats raw fish, raw porkchops, raw beef or raw rabbit together in an enclosed space will activate love mode. They can either be fed the meat, or it can be dropped next to them. After being fed and paired together, love hearts will show around the breeding pair, and after around 5–10 minutes, a cub will be produced and the naming screen will appear.
Thanks for reaching out to us. 🙂 We are no vets, but it sounds like your kitty is doing a-okay! If everything else is normal (eating, potty, sleep, appetite, etc.) then there isn’t much cause to worry. A healthy cat will take anywhere between 20 or 30 breaths per minute. But if you begin to observe a loss of appetite, blue gums, panting with the tongue out, and so on, then those are indicators of something more serious. We hope this helps. Best of luck and thanks again!
The Russian blue is a sweet-tempered, loyal cat who will follow her owner everywhere, so don't be surprised if she greets you at the front door! While she has a tendency to attach to one pet parent in particular, she demonstrates affection with her whole family and demands it in return. It's said that Russian blues train their owners rather than the owners training them, a legend that's been proven true time and again.