Prep U Endocrine – Flashcards
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The adrenal cortex is responsible for producing which substances?
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Glucocorticoids and androgens:
Explanation: The adrenal glands have two divisions, the cortex and medulla. The cortex produces three types of hormones: glucocorticoids, mineralocorticoids, and androgens. The medulla produces catecholamines — epinephrine and norepinephrine.
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A nurse is assessing a client after a thyroidectomy. The assessment reveals muscle twitching and tingling, along with numbness in the fingers, toes, and mouth area. The nurse should suspect which complication?
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Tetany:
Explanation: Tetany may result if the parathyroid glands are excised or damaged during thyroid surgery. Hemorrhage is a potential complication after thyroid surgery but is characterized by tachycardia, hypotension, frequent swallowing, feelings of fullness at the incision site, choking, and bleeding. Thyroid storm is another term for severe hyperthyroidism — not a complication of thyroidectomy. Laryngeal nerve damage may occur postoperatively, but its signs include a hoarse voice and, possibly, acute airway obstruction
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The nurse is reviewing the history and physical examination of a client diagnosed with hyperthyroidism. Which of the following would the nurse expect to find?
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Reports of increased appetite:
Explanation: Signs and symptoms of hyperthyroidism reflect the increased metabolic rate and would include reports of increased appetite, weight loss, and intolerance to heat. Sleepiness, thick hard nails, and intolerance to cold are associated with hypothyroidism.
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A nurse should perform which intervention for a client with Cushing's syndrome?
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Explain that the client's physical changes are a result of excessive corticosteroids.
Explanation: The nurse should explain to the client that Cushing's syndrome causes physical changes related to excessive corticosteroids. Clients with hyperthyroidism, not Cushing's syndrome, are heat intolerant and must have cool clothing and bedding. Clients with Cushing's syndrome should have a high-protein, not low-protein, diet. Clients with Addison's disease must increase sodium intake and fluid intake in times of stress of prevent hypotension.
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The nurse is reviewing a client's history which reveals that the client has had an oversecretion of growth hormone (GH) that occurred before puberty. The nurse interprets this as which of the following?
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Gigantism
Explanation: When oversecretion of GH occurs before puberty, gigantism results. Dwarfism occurs when secretion of GH is insufficient during childhood. Oversecretion of GH during adulthood results in acromegaly. An absence of pituitary hormonal activity causes Simmonds' disease.
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A client with hyperparathyroidism declines surgery and is to receive hormone replacement therapy with estrogen and progesterone. Which instruction is most important for the nurse to include in the client's teaching plan?
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"Maintain a moderate exercise program."
Explanation: The nurse should instruct the client to maintain a moderate exercise program. Such a program helps strengthen bones and prevents the bone loss that occurs from excess parathyroid hormone. Walking or swimming provides the most beneficial exercise. Because of weakened bones, a rigorous exercise program such as jogging is contraindicated. Weight loss might be beneficial but it isn't as important as developing a moderate exercise program.
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Which condition may contribute to hyperparathyroidism?
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Chronic renal failure
Explanation: Because failing kidneys can't convert vitamin D, the serum calcium level declines. Parathyroid hormone release increases, causing hyperparathyroidism. Thyroidectomy may lead to hypoparathyroidism if the parathyroid is also removed during surgery. Serum calcium level may rise as a result of hyperparathyroidism, so it isn't a contributing factor. Steroid use causes calcium to leave bone, suppressing parathyroid hormone.
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A nurse is caring for a client with diabetes insipidus. The nurse should anticipate administering:
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vasopressin (Pitressin).
Explanation: Vasopressin is given subcutaneously to manage diabetes insipidus. Insulin is used to manage diabetes mellitus. Furosemide causes diuresis. Potassium chloride is given for hypokalemia.
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Which of the following would the nurse expect to find in a client with severe hyperthyroidism?
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Exophthalmos
Explanation: Exophthalmos that results from enlarged muscle and fatty tissue surrounding the rear and sides of the eyeball is seen in clients with severe hyperthyroidism. Tetany is the symptom of acute and sudden hypoparathyroidism. Buffalo hump and striae are the symptoms of Cushing's syndrome.
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A nurse is caring for a female client with hypothyroidism. The client is extremely upset about her altered physical appearance. She doesn't want to take her medication because she doesn't believe it's doing any good. What should the nurse do?
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Tell the client she'll soon experience improvement in her looks as the medication corrects her hormone deficiency.
Explanation: Telling the client that she'll soon experience improvement is supportive and encouraging and offers direction in a way that motivates her to take her medication consistently. Telling the client that she looks fine and that she'll soon feel better discount the feelings she's currently experiencing. Advising the client to accept herself is parental and direct at a time when the client needs support and understanding.
