Pharma 2

Create an image of a thyroid gland surrounded by various hormones (T4, T3, iodide) and a backdrop of human anatomy, with scientific illustrations and a clinical setting in a bright color scheme.

Thyroid Hormone Quiz

Test your knowledge of thyroid hormones and their functions with our engaging quiz! This quiz covers key topics, including transport, organification, coupling, and the roles of various hormones in the body.

Key Features:

10 multiple-choice questions
Focus on thyroid hormones and related physiology
Educational and insightful content

10 Questions2 MinutesCreated by AnalyzingThyroid42

Transport

A. Uptake of iodides from the blood into the thyroid gland through a symporter

B. MIT and DIT are cleaved from thyroglobulin, releasing bound T4 and T3 into blood

C. Iodide is converted to iodine by thyroid peroxidase and rapidly iodinated tyrosine residues in thyroglobulin to produce monoiodotyrosine (MIT) or diiodotyrosine (DIT)

D. Two molecules of DIT combine within the thyroglobulin molecule to form l-thyroxine (T4) and one molecule of MIT and one molecule of DIT combine to form T3

Organification

A. Uptake of iodides from the blood into the thyroid gland through a symporter

B. MIT and DIT are cleaved from thyroglobulin, releasing bound T4 and T3 into blood

C. Iodide is converted to iodine by thyroid peroxidase and rapidly iodinated tyrosine residues in thyroglobulin to produce monoiodotyrosine (MIT) or diiodotyrosine (DIT)

D. Two molecules of DIT combine within the thyroglobulin molecule to form l-thyroxine (T4) and one molecule of MIT and one molecule of DIT combine to form T3

Coupling

A. Uptake of iodides from the blood into the thyroid gland through a symporter

B. MIT and DIT are cleaved from thyroglobulin, releasing bound T4 and T3 into blood

C. Iodide is converted to iodine by thyroid peroxidase and rapidly iodinated tyrosine residues in thyroglobulin to produce monoiodotyrosine (MIT) or diiodotyrosine (DIT)

D. Two molecules of DIT combine within the thyroglobulin molecule to form l-thyroxine (T4) and one molecule of MIT and one molecule of DIT combine to form T3

Proteolysis

A. Uptake of iodides from the blood into the thyroid gland through a symporter

B. MIT and DIT are cleaved from thyroglobulin, releasing bound T4 and T3 into blood

C. Iodide is converted to iodine by thyroid peroxidase and rapidly iodinated tyrosine residues in thyroglobulin to produce monoiodotyrosine (MIT) or diiodotyrosine (DIT)

D. Two molecules of DIT combine within the thyroglobulin molecule to form l-thyroxine (T4) and one molecule of MIT and one molecule of DIT combine to form T3

What is the recommended daily intake of iodide in non-pregnant, non-lactating adults?

A. 250 mcg

B. 200 mcg (for pregnant women)

C. 150 mcg

D. 100 mcg

The following are true about thyroid hormones, except:

A. More T4 is released into the blood than T3.

B.T4 is 3-4x more potentthan T3.

C. 80% of circulating T3 is derived from peripheral metabolism of thyroxine.

D. The ratio of T4 to T3 within thyroglobulin is approximately 5:1.

Which of the following thionamides are preferred for use during the first trimester of pregnancy?

A. Propylthiouracil

B. Methimazole

C. Carbimazole

D. Both A and B

Insulin-like growth factor-1 is also known as

A. Somatostatin

B. Growth hormone

C. GHRH

D. Somatomedin C

Growth hormone and its analogs may be used in the treatment of the following, except:

A. Noonan syndrome

B. Prader-Willi syndrome

C. Wasting in patients with HIV infection

D. Acromegaly

Which of the following is NOT an effect of glucocorticoids?

a. Metabolism

B. Potassium regulation

C. Catabolism

D. Inflammation

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