A nurse is reviewing the medical record of a client who has hyperthyroidism (Graves disease). Which of the following serum laboratory findings should the nurse expect to be below the expected reference range?

Choice A: Provide bulk-forming agent. This is incorrect because bulk-forming agents are used to treat constipation, not bowel obstruction. They can worsen the obstruction by increasing the stool volume and pressure in the bowel.

Choice B: Elevate the head of the bed. Elevating the head of the bed is an important intervention for clients with a small bowel obstruction. It can help reduce abdominal pressure, promote comfort, and facilitate better respiratory function, especially if the client is experiencing any associated nausea or vomiting. This position can also aid in the proper positioning of the intestines, potentially helping with any non-complicated obstructions.

Choice D: Monitor intake and output every 8 hr. This is incorrect because monitoring intake and output is not enough to assess the fluid and electrolyte balance of a client with a bowel obstruction. The nurse should monitor intake and output more frequently, such as every 4 hr or every shift, and report any signs of dehydration or imbalance.

Choice C: Measure abdominal girth daily. While this is an important assessment for monitoring the status of the obstruction, the immediate intervention of elevating the head of the bed can provide immediate comfort and support during the acute phase of the obstruction.

Choice A: Thyroxine (T4) level. This is incorrect because T4 is one of the thyroid hormones that is increased in hyperthyroidism. T4 is produced by the thyroid gland and converted to T3 in the tissues. A high level of T4 indicates overactivity of the thyroid gland.1

Choice B: Triiodothyronine (T3) level. This is incorrect because T3 is another thyroid hormone that is increased in hyperthyroidism. T3 is the more active form of thyroid hormone and regulates the metabolism of cells. A high level of T3 indicates overactivity of the thyroid gland.1

Choice C: Thyroid stimulating hormone (TSH) level. This is correct because TSH is a hormone that stimulates the thyroid gland to produce T4 and T3. TSH is produced by the pituitary gland and regulated by a feedback mechanism. When the levels of T4 and T3 are high, the pituitary gland reduces the secretion of TSH to inhibit further production of thyroid hormones. Therefore, a low level of TSH indicates hyperthyroidism.1

Choice D: Glucose level. This is incorrect because glucose level is not directly related to thyroid function. However, hyperthyroidism can affect glucose metabolism and cause increased blood sugar levels due to increased breakdown of glycogen and glucose uptake by cells. Therefore, glucose level may be elevated in some cases of hyperthyroidism, but it is not a specific indicator.