Mrs. Johnson came into your clinic complaining of fatigue, feeling cold all the time, and unexplained weight gain.  A blood test gives the following results (normal ranges given for comparison):             T3:  0.03ng/dl  (normal: 0.2-0.5 ng/dl)             T4:  1.1 ug/dl (normal: 4-7 ug/dl)             TSH: 86 mU/l (normal: 0.3-4.0 mU/l) A) Explain how you know the problem is with Mrs. Johnson’s thyroid and not her pituitary gland.   B) Is Mrs. Johnson suffering from primary or secondary hypothyroidism? Explain your answer. you must explain the distinction between primary and secondary endocrine disorders and relate to this specific scenario

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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Mrs. Johnson came into your clinic complaining of fatigue, feeling cold all the time, and unexplained weight gain.  A blood test gives the following results (normal ranges given for comparison):

            T3:  0.03ng/dl  (normal: 0.2-0.5 ng/dl)

            T4:  1.1 ug/dl (normal: 4-7 ug/dl)

            TSH: 86 mU/l (normal: 0.3-4.0 mU/l)

A) Explain how you know the problem is with Mrs. Johnson’s thyroid and not her pituitary gland. 

 B) Is Mrs. Johnson suffering from primary or secondary hypothyroidism? Explain your answer. you must explain the distinction between primary and secondary endocrine disorders and relate to this specific scenario

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