Stage 1 kidney disease in cats is an important health issue to keep an eye on, no matter what your cat's age. With the proper treatment and nutrition, though, you can keep your kitty happy and manage her condition.
Kidney Disease
Simply stated, kidney disease (also called "renal failure") is the loss of function of the kidneys. It can be chronic (slow and long-term) or acute (sudden). The kidneys filter blood and create urine, so a kidney malfunction can result in a number of medical issues. According to the Cornell Feline Health Center at Cornell University College of Veterinary Medicine, cats with kidney disease "may experience a buildup of the waste products and other compounds in the bloodstream that are normally removed or regulated by the kidneys." This buildup of toxins in turn can create other medical problems, including high blood pressure or anemia (when combined with other factors).
Stage 1 is the first level of chronic kidney disease in cats or the earliest that the disease can be diagnosed. Researchers cannot say for sure why cats develop it, but other medical issues can lead to kidney disease, such as an infection, a virus, gum disease, and dehydration. Some cats can inherit the disease from their parents. Typically, older cats develop kidney disease, but younger cats can be affected, too.
Symptoms
As the Pet Health Network reports, 1 in 3 cats suffer from this disease, and unfortunately, it's not an easy illness to discover. "Most cats show no outward signs of kidney disease until the problem is very advanced. Even when they do, the first signals of kidney disease in cats are easy to miss, including subtle weight loss, urinating/peeing more often and drinking more water." Lethargy, or lack of energy, a decrease or loss of appetite or vomiting, are often strong indicators that something is amiss; therefore, monitor your pet very closely, and if you notice these changes or others, contact your veterinarian right away for an appointment, as the illness can progress quickly if not treated early.
Diagnosis and Treatment
When you bring your cat in for a checkup, she will undergo a variety of tests to determine if she has kidney disease.
Historically, in cats with chronic kidney disease (usually seniors), the vet specifically will look at the levels of two "biochemical byproducts," explains VCA Animal Hospital: blood urea nitrogen (BUN) and creatinine, together with the urine specific gravity (USpG). Another option is to do a protein:creatine test to measure proteinuria.
More recently, another test has been developed that allows vets to diagnose kidney disease, both chronic and acute, much earlier. IDEXX SDMA is a "renal biomarker specific to kidney function. SDMA has proven to be a more sensitive indicator than creatinine, enabling veterinarians to detect acute kidney injury and chronic kidney disease." This test has resulted in 2.4 times more pets being detected with early kidney disease than before. By getting your fur baby diagnosed earlier and more accurately, you can progress to the treatment stage sooner.
When caught in its early stages, especially stage 1, the disease is much easier to treat with meal plan changes. Your veterinarian may recommend a therapeutic pet food.