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Nursing 270 Exam 3b
Thyroid Disorders, Pituitary & Adrenal Disorders
Question | Answer |
---|---|
Primary hypofunction | destruction of gland/blocked secretion-infarction, infection, autoimmmune disorder, neoplasm |
primary hyperfunction | excessive hormone production, tumor, or tissue hyperplasia |
Iatrogenic disorders | induced by medicaion rx for nonendocrine disorder or excessive rx of endocrine disorder-chemo, radiation, surgical, removal, decreased blood supply to gland, high dose steroids |
Thyroid gland | -located on the anterior of neck -has 2 lobes joined by a thin isthmus that lies in front of trachea -rich blood supply -right side has greater blood supply -right often larger than left lobe |
What does the thyroid produce? | -Triiodothyronine (T3) -Thyroxine (T4) -Calcitonin -Synthesis of thyroid hormones involves many steps -need sufficient intake/absorption of iodine and protein |
Iodine | imp in production of T3 & T4 |
What does the amount of T3 & T4 effect? | -production of Growth Hormone -stimulation of thermogenesis -synthesis of many proteins, enzymes, hormones, & metabolism of cholesterol & triglycerides |
What are the 3 most common thyroid problems? | -underactive thyroid -overactive thyroid -thyroid nodules |
What is a goiter? | -enlarged thyroid gland -associated with hypothyroidism |
What is Myxedema? | -describes several conditions due to acquired hypothyroid |
What is Cretinism? | congenital hypothyroid |
What is Thyroiditis | -toxic thyroid -caused by destruction of the gland by drugs or trauma |
What are some symptoms of HYPERthyroidism? | -Sweating -Tremors & tachycardia -Intolerance to heat -Nervousness -Goiter -hyperkinesis -wt loss -anxiety, weakness -rapid speech -moist skin -fatigue, exhausted -frequent bowel movements -shorter or lighter menstrual periods |
What are some symptoms of HYPOthyroidism? | -Fatigue or lack of energy -wt gain -feeling cold -dry skin & hair -HEAVY menstral periods -constipation -slowed thinking |