The client presents with dull, achy flank pain, and a palpable mass in the costovertebral angle.
Based on these symptoms, the nurse suspects which of the following conditions?

Choice A rationale

While a urinary tract infection (UTI) can cause discomfort and pain, it typically does not cause a palpable mass in the costovertebral angle.

Choice B rationale

Gout is a form of arthritis that causes severe pain and swelling in the joints, not typically in the costovertebral angle.

Choice C rationale

Renal calculi, or kidney stones, can cause severe pain, but they do not typically cause a palpable mass in the costovertebral angle.

Choice D rationale

Renal cell carcinoma, a type of kidney cancer, can cause a palpable mass in the costovertebral angle. This is because the tumor can grow large enough to be felt through the skin.

Choice A rationale

Loss of insulin receptors on the target cell, resulting in insulin resistance, is a characteristic of type 2 diabetes mellitus, not type 15.

Choice B rationale

Overproduction of insulin from the beta cells of the pancreas is not a characteristic of type 1 diabetes mellitus. In fact, type 1 diabetes involves a lack of insulin due to the destruction of beta cells.

Choice C rationale

A pituitary tumor in the brain, resulting in increased antidiuretic hormone production, is not related to the pathophysiology of type 1 diabetes mellitus.

Choice D rationale

Type 1 diabetes mellitus is indeed caused by the destruction of the beta cells within the pancreas, which results in an inability to produce insulin.