What does an elevated SFt level in a cat's blood work mean? - briefly
An elevated sorbitol dehydrogenase (SDH) level, often referred to as SFt in older literature, in a cat's blood work typically indicates liver damage or disease. This enzyme is released into the bloodstream when liver cells are injured, so high levels suggest that the liver is under stress or compromised. Liver issues in cats can stem from various causes, including:
- Infections such as feline infectious peritonitis (FIP)
- Toxicities from ingesting harmful substances
- Metabolic disorders
- Liver cancer
Prompt veterinary attention is crucial for diagnosing the underlying cause and initiating appropriate treatment. Early intervention can significantly improve the prognosis and quality of life for the affected cat.
What does an elevated SFt level in a cat's blood work mean? - in detail
Elevated serum feline triiodothyronine (SFt) levels in a cat's blood work can indicate several potential health issues. SFt is a hormone that is produced by the thyroid gland and is crucial for regulating the cat's metabolism. An elevated SFt level typically suggests that the thyroid gland is overactive, a condition known as hyperthyroidism.
Hyperthyroidism is one of the most common endocrine disorders in cats, particularly in older felines. The condition occurs when the thyroid gland produces excessive amounts of thyroid hormones, leading to an increased metabolic rate. This can result in a variety of symptoms, including weight loss despite an increased appetite, hyperactivity, increased thirst and urination, vomiting, and diarrhea. In severe cases, hyperthyroidism can lead to heart disease, hypertension, and other serious health complications.
The diagnosis of hyperthyroidism is typically confirmed through blood tests that measure the levels of thyroid hormones, including SFt. Additional diagnostic tests, such as thyroid ultrasound or scintigraphy, may be recommended to determine the cause of the elevated hormone levels. The most common cause of hyperthyroidism in cats is a benign tumor (adenoma) on the thyroid gland, but in some cases, it may be due to thyroid cancer or other underlying conditions.
Treatment options for hyperthyroidism in cats include medication, surgery, and radioactive iodine therapy. Methimazole is a commonly prescribed medication that helps to control the production of thyroid hormones. Surgery to remove the affected thyroid gland is another option, particularly if the condition is caused by a tumor. Radioactive iodine therapy is highly effective in destroying the overactive thyroid tissue and is often considered the gold standard for treatment.
Regular monitoring of thyroid hormone levels is essential for cats with hyperthyroidism, even after treatment. This ensures that the condition is well-managed and helps to prevent the recurrence of symptoms. It is crucial for cat owners to work closely with their veterinarians to develop an appropriate treatment plan and to regularly monitor their pets' health.
In summary, elevated SFt levels in a cat's blood work are a strong indicator of hyperthyroidism, a condition that requires prompt diagnosis and treatment to manage effectively. Early intervention can significantly improve the cat's quality of life and prevent potential complications associated with an overactive thyroid gland.