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Kaplan Qbank USMLE



Author3 Posts
  #1

Decreased activitiy of Type I 5'monodeiodinase could lead to which of the following physiological effects? (all in plasma)

a) Increased T3
b) Increased reverse T3
c) Decreased T4
d) Increased Thyroid stimulating hormone
e) Hyperthyroidism

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  #2

B. increased reverse T3.
In the absence of 5 deiodinase, the only way T4 could go is rT3

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  #3

Very good and thxs for the short and crisp explanation! grin

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