Chapter 58: Concepts of Care for Patients With Problems of the Thyroid and Parathyroid Glands

Hypothyroidism, characterized by insufficient thyroid hormone production, results in decreased metabolic rate and presents clinically with bradycardia, cold intolerance, slowed speech patterns, progressive weight gain, and cognitive impairment. Management centers on thyroid hormone replacement therapy with dosage titration guided by patient response including changes in sleep quality and gastrointestinal motility, while careful consideration must be given to potential drug interactions with sedating medications. Hyperthyroidism, most commonly caused by Graves disease, involves excessive thyroid hormone production leading to accelerated metabolism and potentially life-threatening thyroid storm if left untreated. Clinical manifestations include heat intolerance, weight loss despite increased appetite, profuse sweating, hyperreflexia, and in severe cases, exophthalmos. Treatment options include antithyroid medications such as methimazole and propylthiouracil, which require careful monitoring due to teratogenic effects and hepatotoxicity risks, or radioactive iodine therapy to permanently reduce thyroid function. Parathyroid disorders involve dysregulation of calcium homeostasis through alterations in parathyroid hormone production. Hyperparathyroidism causes elevated serum calcium levels with associated bone demineralization and metabolic complications, while hypoparathyroidism results in hypocalcemia with neuromuscular manifestations. Postoperative nursing care following thyroid or parathyroid surgery demands readiness with emergency airway equipment and vigilant assessment for hypocalcemia complications, identified through clinical signs including paresthesia, muscle twitching, and positive Chvostek and Trousseau signs indicating neuromuscular irritability.