The nurse is reviewing lab values of a patient admitted with hypothyroidism. What would the nurse expect to find?

Choice A reason: In primary hypothyroidism, the thyroid gland fails to produce sufficient thyroid hormones (T3 and T4), prompting the pituitary gland to release more thyroid-stimulating hormone (TSH). Therefore, TSH levels are elevated. Choice B reason: Low urinary cortisol is not a typical finding in hypothyroidism. It may be associated with adrenal insufficiency but not directly with thyroid dysfunction. Choice C reason: While hyponatremia can occur in severe hypothyroidism due to impaired free water clearance, it is not a consistent or primary diagnostic marker. Choice D reason: High T3 and T4 levels are indicative of hyperthyroidism, not hypothyroidism. In hypothyroidism, these levels are typically low.