ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303106
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 18, Problem 4CT
Summary Introduction
To design:
A method of determining whether hyperthyroidism in a patient results from a pituitary abnormality or the production of a nonpituitary thyroid stimulatory substance.
Introduction:
The secretion of parathyroid hormone (PTH) is triggered by a decrease in blood calcium ions levels, and inhibition of PTH secretion is triggered by an elevation in blood calcium ions levels. In this way, blood calcium levels are maintained within a normal range.
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Most laboratories are able to determine blood levels of TSH, T3,and T4. Given that ability, design a method of determining whetherhyperthyroidism in a patient results from a pituitary abnormality or from the production of a nonpituitary thyroid stimulatorysubstance.
1) Hormone pathologies often manifest with elevated or lower hormones. The underlying cause may differ. What symptoms would be associated with hyperthyroidism?
2) Autoimmune disease in which auto-antibodies stimulate the TSH receptor (TSHR) on the thyroid gland. How would this affect levels of TRH, TSH, and TH? Draw out the H-P-T axis to illustrate changes in each hormone.
3) What symptoms would be associated with hypothyroidism?
4) How could this disease be treated? When the thyroid cells are destroyed, they cannot make hormones anymore and TH replacement needs to be given.
Consider the communication between the hypothalamus, pituitary and various target organs when answering this question. For each condition discussed, state the change you would expect to find for each hormone/compound addressed - INCREASED, DECREASED, UNAFFECTED, CAN'T INTERPRET:
A patient suffering from untreated Graves disease:
A) TSH B) Calcitonin C) Thyroxine(T4/T3) D) TRH
A patient suffering from untreated goiter:
A) TSH B) Calcitonin C) Thyroxine(T4/T3) D) TRH
A patient suffering from pituitary tumor secreting ACTH:
A) CRH B) ACTH C) Cortisol D) Plasma potassium level
Now, let's consider calcium metabolism and balance. For each condition discussed, state the change you would expect to find for hormone/calcium levels - INCREASED, DECREASED, UNAFFECTED, CAN'T INTERPRET:
A patient with…
Chapter 18 Solutions
ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
Ch. 18.1 - Prob. 1AYPCh. 18.1 - Prob. 2AYPCh. 18.2 - Prob. 3AYPCh. 18.2 - Prob. 4AYPCh. 18.2 - How does the hypothalamus regulate the secretion...Ch. 18.2 - Prob. 6AYPCh. 18.2 - Prob. 7AYPCh. 18.2 - Prob. 8AYPCh. 18.2 - Prob. 9AYPCh. 18.2 - Prob. 10AYP
Ch. 18.2 - Prob. 11AYPCh. 18.2 - Prob. 12AYPCh. 18.2 - Prob. 13AYPCh. 18.2 - What effects do stress, blood amino acid levels,...Ch. 18.2 - Describe the effects of GH on its target tissues.Ch. 18.2 - Prob. 16AYPCh. 18.2 - Prob. 17AYPCh. 18.2 - Prob. 18AYPCh. 18.2 - For each of the following hormones secreted by the...Ch. 18.2 - Prob. 20AYPCh. 18.2 - What is a gonadotropin? Name two...Ch. 18.3 - Prob. 22AYPCh. 18.3 - Prob. 23AYPCh. 18.3 - How are the thyroid hormones transported in the...Ch. 18.3 - Prob. 25AYPCh. 18.3 - Starting in the hypothalamus, explain how chronic...Ch. 18.3 - Prob. 27AYPCh. 18.3 - Prob. 28AYPCh. 18.3 - Prob. 29AYPCh. 18.3 - What conditions cause hyperthyroidism? Describe...Ch. 18.3 - Prob. 31AYPCh. 18.4 - Prob. 32AYPCh. 18.4 - Prob. 33AYPCh. 18.4 - Prob. 34AYPCh. 18.4 - Prob. 35AYPCh. 18.4 - What can cause hypoparathyroidism?Describe the...Ch. 18.4 - Prob. 37AYPCh. 18.5 - Where are the adrenal glands located? Describe the...Ch. 18.5 - Name two hormones secreted by the adrenal medulla,...Ch. 18.5 - Prob. 40AYPCh. 18.5 - Prob. 41AYPCh. 18.5 - Name the target tissue ofaldosterone, and list...Ch. 18.5 - Prob. 43AYPCh. 18.5 - Prob. 44AYPCh. 18.5 - List the possible causes of hypersecretion of...Ch. 18.5 - Prob. 46AYPCh. 18.6 - Prob. 47AYPCh. 18.6 - Prob. 48AYPCh. 18.6 - How does insulin affect the satiety center of the...Ch. 18.6 - Prob. 50AYPCh. 18.6 - Prob. 51AYPCh. 18.7 - Prob. 52AYPCh. 18.7 - Prob. 53AYPCh. 18.7 - Prob. 54AYPCh. 18.8 - Prob. 55AYPCh. 18.8 - List the hormones secreted by the ovaries, and...Ch. 18.8 - What hormones from the anterior pituitary gland...Ch. 18.8 - Prob. 58AYPCh. 18.9 - Prob. 59AYPCh. 18.9 - Prob. 60AYPCh. 18.10 - What hormone is secreted by the thymus? What is...Ch. 18.10 - Prob. 62AYPCh. 18.10 - Prob. 63AYPCh. 18.10 - Prob. 64AYPCh. 18.10 - List examples of paracrine chemical messengers...Ch. 18.10 - Prob. 66AYPCh. 18.11 - Prob. 67AYPCh. 18.11 - Prob. 68AYPCh. 18 - The pituitary gland a. develops from the floor of...Ch. 18 - The hypothalamohypophysial portal system a....Ch. 18 - Prob. 3RACCh. 18 - Prob. 4RACCh. 18 - Prob. 5RACCh. 18 - Prob. 6RACCh. 18 - Prob. 7RACCh. 18 - Hypersecretion of growth hormone a.results in...Ch. 18 - Prob. 9RACCh. 18 - Prob. 10RACCh. 18 - Prob. 11RACCh. 18 - Prob. 12RACCh. 18 - Prob. 13RACCh. 18 - Parathyroid hormone secretion increases in...Ch. 18 - Prob. 15RACCh. 18 - Prob. 16RACCh. 18 - In the condition in which a benign tumor results...Ch. 18 - Which of these is nor a hormone secreted by the...Ch. 18 - Prob. 19RACCh. 18 - Prob. 20RACCh. 18 - Prob. 21RACCh. 18 - Within the pancreas, the pancreatic islets produce...Ch. 18 - Insulin increases a. the uptake of glucose by its...Ch. 18 - Prob. 24RACCh. 18 - Prob. 25RACCh. 18 - Prob. 26RACCh. 18 - Prob. 27RACCh. 18 - Prob. 28RACCh. 18 - Prob. 29RACCh. 18 - Prob. 30RACCh. 18 - Prob. 1CTCh. 18 - Prob. 2CTCh. 18 - A patient complains of headaches and visual...Ch. 18 - Prob. 4CTCh. 18 - Prob. 5CTCh. 18 - Prob. 6CTCh. 18 - Prob. 7CTCh. 18 - Predict some of the consequences of exposure to...Ch. 18 - Katie was getting nervous. At 16, she was the only...
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- Match the endocrine control concepts.arrow_forwardWhich hormones produced in the posterior and anterior lobes of the pituitary gland have the targets indicated? Below, fill in the blanks using the abbreviations noted in Section 15.3.arrow_forwardFigure 37.14 Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have? Patient A has symptoms including weight gain, cold sensitivity, low heart rate, and fatigue. Patient B has symptoms including weight loss, profuse sweating, increased heart rate, and difficulty sleeping.arrow_forward
- The endocrine system is composed of glands that secrete hormones that regulate the activity of different body cells. The pituitary gland is often called the "master gland" because it controls the activities of other glands. Discuss a disorder associated with either hypo or hypersecretion of a specific hormone secreted by the pituitary gland. Include in your discussion the answer to the following: What effect will an increase or decrease in production have on the target organs?What signs and symptoms are associated with this condition and how is it treated?arrow_forwardIdentify a true statement about hyperthyroidism. Multiple Choice Hyperthyroidism, from any cause, is associated with an increased secretion and circulation of T3 and T4- Decreased cell metabolism,bradycardia, and weight gain are characteristic symptoms of hyperthyroidism. The clinical symptoms of hyperthyroidism resemble excessive stimulation of the parasympathetic nervous system. Hyperthyroidism is generally caused by glandular destruction of the thyroid gland.arrow_forwardWhich one of the following statements about T3 is FALSE? 1) It is thought to be the most active thyroid hormone. 2) It may be elevated to a greater extent than T4 in hyperthyroidism. 3) It is not bound to serum proteins. 4) It is commonly decreased in patients with nonthyroidal illness. no references, just homework.arrow_forward
- Thyroid medications are contraindicated in all of the following circumstances, except:A. Chronic heart failureB. Untreated hyperthyroidismC. Untreated adrenal insufficiencyD. Acute coronary syndromeE. Decompensated tachyarrhythmiaarrow_forwardExplain the concept of coordination in the context of endocrine system function. Differentiate exocrine from endocrine glands. Describe the roles of the hypothalamus, pituitary glands, target glands, and target organs. Enumerate the secretion of the hypothalamus and their functions. List the hormones secreted by the anterior and posteriors pituitary glands and their functions. Explain the hormonal secretion and their functions of the following: thyroid, parathyroid, adrenal (cortex and medulla), gonads (testis, ovaries), pancreas (beta and alpha cells), thymus, pineal glands. Describe the functions of hormones secreted by the following internal organs: heart, liver, kidney, stomach, small intestines, colon, and muscles Explain the concept of negative and positive feedback. Describe drugs that affect the endocrine system: thyroid replacement hormones, steroids, insulin. Give examples of nursing diagnosis that apply to issues of the endocrine system.arrow_forwardChoose correct statement relatively to the detrimental action of increased thyroid hormone production: A. T3 sensitises the myocardium to the effects of catecholaminesB. T3 and T4 cause hyperprolactinemiaC. Weight gain is related with thyroid overproduction D. T4 directly induce tachycardiaE. Excessive level of thyroid hormones predisposes to constipationarrow_forward
- In Graves' disease, the body attacks the thyroid gland tissue and causes it to overproduce thyroid hormones, resulting in elevated blood levels of T3 and T4. Which of the following statements would be TRUE? Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TRH and the Anterior Pituitary Gland would release more TSH. Since blood levels of thyroid hormones are elevated, the hypothalamus would release more TRH and the Anterior Pituitary Gland would then stop releasing TSH. Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TRH and the Anterior Pituitary Gland would not release TSH. Since blood levels of thyroid hormones are elevated, the hypothalamus would not release TSH and the Anterior Pituitary Gland would not release TRH.arrow_forwardAt a routine employment physical, a 30-year-old man is found to be mildly hypocalcemic, although he denies any symptoms. He does reveal that he has markedly reduced his consumption of dairy products and leafy greens over the past two months, citing gastrointestinal distress when these items were previously consumed. Analysis of his blood or an intestinal biopsy would be expected to reveal which of the following? Group of answer choices Increased parathyroid hormone secretion Increased formation of 24,25-dihydroxycholecalciferol Decreased amounts of calcium-binding protein in intestinal epithelial cells Increased plasma phosphatearrow_forwardCompare and contrast the mechanisms of action of steroid hormones,thyroid hirmones,and water soluble hormones.arrow_forward
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