Mr. Scully, a patient with hypothyroidism, has had blood tests done to check his thyroid function.  The lab technician reports that his TSH level is abnormally high, but forgets to record the levels of T3 and T4.  Based on the TSH level, predict whether Mr. Scully's T3 and T4 levels will be elevated, normal, or decreased.  Explain your answer.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Mr. Scully, a patient with hypothyroidism, has had blood tests done to check his thyroid function.  The lab technician reports that his TSH level is abnormally high, but forgets to record the levels of T3 and T4.  Based on the TSH level, predict whether Mr. Scully's T3 and T4 levels will be elevated, normal, or decreased.  Explain your answer.

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