Hypothyroidism

Front 1

What is Myxadema?

Back 1

The syndrome of adult hypothyroidism is generally called myxadema.

Front 2

Myxadema however, usually refers to specific skin changes. TRUE/FALSE

Back 2

TRUE

Front 3

What can cause thyroid disease?

Back 3

It may be due to a number of thyroid abnormalities, or it may be secondary to pituitary failure(pituitary hypothyroidism) or hypothalamic failure(hypothalamic hypothyroidism).

Front 4

How can hypothalamic be distinguished from the pituitary form?

Back 4

There is a presence in the former of a rise in plasma TSH following a test dose of TRH.

Front 5

The TSH response to TRH is usually normal in the hypothalamic form, while it is increased in hypothyroidism caused by thyroid disease and decreased in hyperthyroidism because of the feedback of thyroid hormones on the pituitary gland. TRUE/FALSE

Back 5

TRUE

Front 6

What does the BMR fall to in completely athyreotic humans?

Back 6

App. 40%

Front 7

What are some of the characteristics of the above condition?

Back 7

The hair is coarse and sparse, the skin is dry and yellowish(carotenemia) and cold is poorly tolerated. The voice is husky and slow.
Mentation is slow, memory is poor. Plasma cholesterol is elevated.

Front 8

Thyroid hormones lower circulating cholesterol levels. TRUE/FALSE

Back 8

TRUE

Front 9

The decrease in plasma cholesterol concentration is due to what?

Back 9

Increased formation of LDL receptors in the liver, resulting in increased hepatic removal of cholesterol from the circulation.