Intestinal Protein Loss in Cats
Protein Losing Enteropathy in Cats
Nutrients make their way through the body by way of the bloodstream. From the stomach, the food that has been eaten enters into the intestines, where it is divided into what is useful for the body and what is not. The useful, nutritious bits are picked up by the bloodstream as it passes through the intestines, carrying them to the rest of the body, where they are converted into various types of energy.
As the bloodstream picks up these nutrients, a small amount of protein leaks from the blood vessels back into the intestines. Usually these proteins are digested in the intestines, absorbed back into the blood, and used by the body to make more protein, but when the intestines are damaged, more protein leaks out into the intestines than the body can replace. This condition is referred to as protein losing enteropathy (enteropathy being any abnormal condition relating to the intestines). There are a number of diseases that can damage the intestines enough to cause this extra protein loss.
Protein losing enteropathies can occur in any cat breed and at any age.
Symptoms and Types
You will need to give a thorough history of your cat's health and onset of symptoms. A thorough physical examination will be performed, and will include standard laboratory work – a complete blood count, biochemical profile and urinalysis. Your veterinarian will use these samples to determine your cat's blood protein level and blood calcium level. There are several causes that will need to be ruled out in order to make a diagnosis. Your veterinarian will order stool (fecal) tests to check for intestinal parasites, intestinal infections, and other indicators that your cat is losing protein from its intestines.
Your veterinarian may also check the blood vitamin levels, which will be low if your cat is losing protein from its intestines. X-ray and ultrasound images of your cat's chest and abdomen will allow your veterinarian to visually examine these internal structures for evidence of internal ulcerations or tumors, and will also display the heart's capabilities, and whether its performing abnormally. If your veterinarian needs a better visual of the stomach and intestines than external devices can provide, an endoscopy may be performed for a better view. In this test, a small camera, attached to a tube, is passed through the mouth or anus into the intestines so that the walls of the stomach and intestinal tract can be closely inspected for ulcers, tissue masses (tumors), or abnormalities in the wall or cell structure. The endoscopic device also allows for taking samples of tissue while it is inserted, and is a much less invasive method for performing a biopsy. Bioptic analysis is an especially useful diagnostic tool for determining why an animal is losing protein through its intestines.
Anything pertaining to the blood vessel system in the body
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
The condition of being drowsy, listless, or weak
Having a hard time breathing; breathing takes great pains
The process of removing tissue to examine it, usually for medical reasons.
The end of the gastrointestinal tract; the opening at the end of the tract.
The collection of fluid in the tissue
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