Lab 1 & 2 Flashcards
Two main hormones that the thyroid gland releases
Thyroxine (T4) - Largely inactive
Triiodothyronine (T3) - active
Is a part of your brain that controls function like blood pressure, heart rate, body temperature and digestion
hypothalamus
A small pea-sized gland located at the base of your brain, below the hypothalamus.
-How is it connected to the hypothalamus?
Pituitary gland
- pituitary stalk
What thyroid hormone is a better indicator of thyroid function when used alongside other thyroid hormone tests
Free T4 and T3
The thyroid gland makes and secretes very high levels of thyroid hormones
1. What animal is commonly affected?
Hyperthyroidism
1. Cat
Age range of cats affected by Hyperthyroidism
4-20+ years old
> 8 years old
Diagnosis of Hyperthyroidism
- Increased serum total thyroxine (T4)
Treatment options for Hyperthyroidism
- Mecarptoidmidazole
- Radioactive iodine treatment (for malignant thyroid tumors
3.surgical thyroidectomy - Iodine-restricted diet
Clinical signs of Hyperthyroidism
Weight loss and poor hair coat
Periodic vomiting
Polyuria and polydipsia.
Increased in appetite, activity, restlessness
Occasional difficulty breathing, weakness and depression.
endocrine disease that occurs when the thyroid glands fail to produce adequate amounts of the hormones thyroxine (T4) and triiodothyronine (T3)
-Species that are more affected.
Hypothyroidism
-dogs
Drugs that alter canine thyroid hormone function
Prednisone (high dose)
Phenobarbital
Trimethoprim-sulfamethoxazole
Aspirin (high dose)
Clomipramine
Thyroxine supplementation
