The answer is yes, but it's important to understand that it's not something to take lightly. Rattlesnake venom is incredibly dangerous and can be fatal. Even if the cat survives the bite, there may be long-term complications and effects. If your cat has been bitten, it is important to seek veterinary care immediately. The vet will likely administer anti-venom and provide supportive care, such as intravenous fluids and pain medications. Even with this treatment, there is no guarantee of success. The cat may still suffer from organ damage, infection, or other complications.