You see the colonel and collect some blood to send off to the lab. The analysis comes back as follows: T3 (triiodothyronine): 0.03 ng/dl (normal: 0.2-0.5 ng/dl) T4 (thyroxine): 1.1 pg/dl (normal: 4–7 µg/dl) TSH (thyroid-stimulating hormone): 86 mU/1 (normal: 0.3–4.0 mU/l) Analyze the results. Why do you think the T3 and T4 are low and the TSH is elevated?

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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Case 1: The Cold Colonel
You are called upon to visit the ailing Col. Lemon. Before you see him, you speak with three witnesses who were with him
when he fell ill.
Witness statements:
I Ms. Magenta: “Col. Lemon has been hot-blooded for as long as I've known him. But I noticed that he couldn't
seem to keep warm. He kept complaining about being cold..."
I Mr. Olive: “Just between you and me, I've noticed that the old chap has put on quite a bit of weight lately."
I Professor Purple: “The colonel and I used to go on major expeditions together. Now he just doesn't seem to have
the energy to do much of anything."
Transcribed Image Text:Case 1: The Cold Colonel You are called upon to visit the ailing Col. Lemon. Before you see him, you speak with three witnesses who were with him when he fell ill. Witness statements: I Ms. Magenta: “Col. Lemon has been hot-blooded for as long as I've known him. But I noticed that he couldn't seem to keep warm. He kept complaining about being cold..." I Mr. Olive: “Just between you and me, I've noticed that the old chap has put on quite a bit of weight lately." I Professor Purple: “The colonel and I used to go on major expeditions together. Now he just doesn't seem to have the energy to do much of anything."
You see the colonel and collect some blood to send off to the lab. The analysis comes back as follows:
T3 (triiodothyronine): 0.03 ng/dl (normal: 0.2–0.5 ng/dl)
T4 (thyroxine): 1.1 µg/dl (normal: 4–7 µg/dl)
TSH (thyroid-stimulating hormone): 86 mU/l (normal: 0.3-4.0 mU/l)
Analyze the results. Why do you think the T3 and T4 are low and the TSH is elevated?
..
Transcribed Image Text:You see the colonel and collect some blood to send off to the lab. The analysis comes back as follows: T3 (triiodothyronine): 0.03 ng/dl (normal: 0.2–0.5 ng/dl) T4 (thyroxine): 1.1 µg/dl (normal: 4–7 µg/dl) TSH (thyroid-stimulating hormone): 86 mU/l (normal: 0.3-4.0 mU/l) Analyze the results. Why do you think the T3 and T4 are low and the TSH is elevated? ..
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