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thyroid dysfunction
hypothyroidism
| Question | Answer |
|---|---|
| hypothyroidism | deficiency of thyroid hormone |
| causes of hypothyroidism | iodine deficiency, atrophy of the gland, treatment for hyperthyroidism, drugs, cretinism |
| clinical manifestations of hypothyroidism | slow onset, vary by age and severity fatigue, impaired memory, slowed speech, lethargic, depressed, weight gain, cold intolerance, confusion, hair loss |
| cardiovascular CMs | decreased cardiac output and contractility increased serum cholesterol and triglycerides |
| respiratory system CMs | low exercise intolerance, increased serum cholesterol and triglycerides |
| neurologic system CMs | fatigue and lethargy mood and personality changes |
| GI system CMs | decreased appetite weight gain |
| integumentary system CMs | dry, inelastic, thick and cold skin thick, brittle nails |
| muscular system CMs | muscle aches and pains slow movements |
| reproductive system CMs | prolonged menstrual periods or amenorrhea decreased libido and infertility |
| myxedema coma is characterized by: | impaired consciousness, subnormal temperature, hypotension, hypoventilation, cardiovascular collapse |
| how is myxedema coma treated | IV thyroid hormone |
| what is myxedema coma precipitated by: | infection, drugs, cold, trauma |
| diagnostic studies for hypothyroidism | increased TSH increased triglycerides, cholesterol, CK decreased RBCs |
| levothyroxine (Synthroid) considerations | start dose low, monitor HR, report pulse > 100, report weight loss, nervousness, chest pain |
| when to take levothyroxine | do not take within 4 hours of taking GI meds take an hour before eating on an empty stomach |
| nursing management: | monitor: skin care, weight, edema, cardiovascular response to hormone, energy level, mental alertness |
| management of myxedema coma | mechanical respiratory support cardiac monitoring IV thyroid replacement monitor core temperature |