SA Endocrinology 2 - Feline Hyperthyroidism

Question 1

Which human disease does feline hyperthyroidism resemble?

Answer 1

Toxic adenomatous goitre

Question 2

Where breeds are predisposed to feline hyperthyroidism?

Answer 2

Non-siamese breeds

Question 3

List the three main common clinical signs for feline hyperthyroidism?

Answer 3

Weight loss
Polyphagia
Hyperactivity

Question 4

Which clinical signs are seen with apathetic hyperthyroidism?

Answer 4

Weight loss
Inappetence/anorexia
Lethargy

Question 5

List two tests that can be used to diagnose feline hyperthyroidism.

Answer 5

Increased total T4
Free T4

Question 6

List two things that are commonly seen on the serum biochemistry of cats with hyperthyroidism

Answer 6

Increased liver enzymes
Hyperphophataemia

Question 7

Which drug is used to medically manage feline hyperthyroidism?

Answer 7

Carbimazole (prodrug) -> Methimazole (thimazole)

Question 8

What should you aim for the total T4 to be during medical therapy of feline hyperthyroidism?

Answer 8

In the lower half of the reference interval

Question 9

Which value will increase in the treatment of feline hyperthyroidism?

Answer 9

Creatinine

Question 10

What are the four main adverse clinical signs of medical therapy of feline hyperthyroidism?

Answer 10

Anorexia, vomiting, lethargy and facial excoriation

Question 11

List three adverse laboratory findings associated eith medical therapy of feline hyperthyroidism

Answer 11

Blood dyscrasias
Acute toxic hepatopathy
Azotemia

Question 12

How is radioiodine use in cats for feline hyperthyroidism?

Answer 12

Subcutaneous administration of 131I, concentrated in thyroid gland

Question 13

What is the success rate for radioiodine treatment in cats with feline hyperthyroidism?

Answer 13

95%