This quiz assesses understanding of the thyroid gland's role in the endocrine system, focusing on thyroid hormone effects, clinical scenarios like hypothyroidism and hyperthyroidism, and diagnostics. It is crucial for medical students preparing for clinical assessments.
Therapeutic radiation
Thyroid resection
Hypopituitarism
Autoimmune destruction
Polyglandular failure syndrome.
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T4 reduced, TSH reduced
T4 elevated, TSH reduced
T4 elevated, TSH elevated
T4 reduced, TSH elevated
T4 reduced, TSH normal
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T4 reduced, TSH reduced
T4 elevated, TSH reduced
T4 elevated, TSH elevated
T4 reduced, TSH elevated
T4 reduced, TSH normal
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A
B
C
D
E
F
A
B
C
D
E
Constitutive activation of the Gs-protein as a result of a somatic mutation
An antibody that stimulates TSH receptors
Abnormally elevated TSH levels
A transport defect for iodine in the membrane of the follicular cell
Reduced feedback inhibition of the thyrotrophs in the pituitary gland
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It blocks the release of THS from pituitary gland
It inhibits thyroid hormone release from follicular cells
It increases the vascularity of thyroid gland
It causes necrosis of thyroid follicular cells
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Methimazole
Somatrem
Levothyroxine
Theophylline
Potassium iodide
Prednisone
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Potassium iodide
Levothyroxine
Diiodotyrosine
Monoiodotyrosine
Reverse triiodothyronine
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Potassium iodide
Propranolol
Methimazole
Loperamide
Levothyroxine
Diltiazem
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Myopathy
Cardiac arrhythmias
Agranulocytosis
Dry mouth
Weight loss
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Levothyroxine
Diiodotyrosine
TSH
Propylthiouracil
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Thyroid stimulating hormone (TSH)
Dietary iodine supplementation
Thyroxine
TSH receptor antibodies
TRH
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A
B
C
D
E
F
G
The TSH receptor
The T3 receptor
Thyroxin-binding globulin in the blood
Thyroglobulin in the thyroid gland
Pendrin
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Increase levothyroxine dose
Substitute levothyroxine dose with triiodothyronine
Decrease levothyroxine dose
Stop therapy with levothyroxine
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It is derived from the 3rd pharyngeal pouch
It secretes parathyroid hormone
Chief cells are involved in the production of calcitonin
Colloid is primarily composed of calcitonin and T3
Thyroid follicular cells secrete T4 hormone
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They contain thyroglobulin
They are line by epithelial cells that vary in appearance with the activity of the gland
Their lining includes Para follicular cells that release calcitonin into the colloid
They are surrounded by a fenestrated capillary network
They are stimulated by TSH
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In the thyroid gland, iodine is oxidized by type II deiodinase
Thyroid peroxidase catalyzes the coupling of two DITs to form T4.
Transport of iodide in to the thyroid gland is facilitated by anions such as perchlorate.
Plasma iodide is transported into the thyroid by facilitated diffusion.
Proteolysis of iodinated thyroglobulin is inhibited by TSH.
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Reduced activity of thyroperoxidase
Impaired conversion of T4to T3
Reduced level of cAMP in the thyroid follicular cells
An antibody that binds to the TSH receptor in the thyroid gland
Elevated TSH level
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Enhanced secretion of thyroid stimulating hormone (TSH).
Suppression of TSH secretion
Enhanced secretion of adrenocorticotropic hormone (ACTH).
Blockade of the TSH receptor on thyroid follicular cells.
DON’T KNOW THE ANSWER TO THIS QUESTION…..
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