Which findings correspond with the secretion of antidiuretic hormone (ADH) in a client with small-cell lung carcinoma?

The secretion of antidiuretic hormone (ADH) is primarily associated with the regulation of water balance in the body. In the context of small-cell lung carcinoma, there can be an inappropriate or excessive secretion of ADH, leading to a condition known as Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH). This condition causes the body to retain water, diluting serum sodium levels, which can result in fluid overload and the development of edema.

Edema occurs when there is an imbalance in the amounts of fluid in the body's tissues, often due to increased water retention from elevated ADH levels. This retention also leads to an increased blood volume, which can further contribute to swelling and edema in various parts of the body.

In contrast, polyuria would indicate an increased production of urine, which is opposite of what occurs with excess ADH secretion. Bradycardia and hypotension are usually related to other physiological responses or conditions and do not directly relate to the effects of elevated ADH in SIADH. Therefore, the finding of edema aligns well with the mechanism of increased water retention and excess ADH secretion associated with small-cell lung carcinoma.