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If the thyroid gland is unable to produce iodinated thyroglobulin, what is the effect on hormone production?

A.

Triiodothyronine (T3) and thyroxine (T4) production continues uninterrupted.

B.

Excess triiodothyronine (T3) and thyroxine (T4) hormones are produced.

C.

Less triiodothyronine (T3) and thyroxine (T4) hormones are produced.

D.

Less thyroid-stimulating hormone (TSH) is released.

Answer and Explanation

The Correct Answer is C

a) Triiodothyronine (T3) and thyroxine (T4) production continues uninterrupted.
Iodinated thyroglobulin is essential for producing T3 and T4.

b) Excess triiodothyronine (T3) and thyroxine (T4) hormones are produced.
A lack of iodinated thyroglobulin leads to decreased production.

c) Less triiodothyronine (T3) and thyroxine (T4) hormones are produced.
Without iodinated thyroglobulin, the thyroid cannot synthesize sufficient T3 and T4, leading to hypothyroidism.

d) Less thyroid-stimulating hormone (TSH) is released.
TSH levels would actually increase due to lack of negative feedback from low T3 and T4 levels.


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Related Questions

Correct Answer is C

Explanation

a) Hemolysis, vascular spasm, platelet plug formation: Hemolysis (RBC destruction) is not part of hemostasis.

b) Vascular spasm, clotting polycythemia: Polycythemia is an excess of RBCs, unrelated to clotting sequence.

c) Vascular spasm, platelet plug formation, clotting: This is the accurate and standard 3-step sequence of hemostasis.

d) Emigration, clotting, hemolysis: Emigration refers to WBC movement; this choice contains unrelated processes.

Correct Answer is B,D,C,A

No explanation

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