A nurse is reinforcing discharge instructions with a client who has a new prescription for phenazopyridine hydrochloride. Which of the following statements should the nurse include in the instructions?

Choice A rationale
Obesity is not a direct cause of renal calculi. However, it can be a risk factor due to associated conditions such as metabolic syndrome, diabetes, and hypertension, which can contribute to stone formation. Weight management and a healthy lifestyle can help reduce the risk of kidney stones.
Choice B rationale
Dehydration is a significant risk factor for the formation of renal calculi. When the body is dehydrated, the urine becomes concentrated, leading to the crystallization of minerals and the formation of stones. Adequate hydration is essential in preventing kidney stones by diluting the urine and reducing the concentration of stone-forming substances.
Choice C rationale

Iron deficiency is not associated with the formation of renal calculi. Iron deficiency primarily affects red blood cell production and can lead to anemia. It does not contribute to the crystallization of minerals in the urine or the formation of kidney stones.
Choice D rationale
Protein in the urine, or proteinuria, is not a direct cause of renal calculi. Proteinuria is often a sign of kidney damage or disease but does not lead to stone formation. The presence of protein in the urine should be evaluated to determine the underlying cause and appropriate treatment.

Choice A rationale
Acetone breath is a characteristic symptom of diabetic ketoacidosis (DKA), not hyperosmolar hyperglycemic syndrome (HHS). In DKA, the body produces ketones, leading to a fruity or acetone-like breath odor. HHS, on the other hand, does not typically involve significant ketone production.
Choice B rationale
Fever can be a manifestation of HHS, often due to an underlying infection or illness that precipitates the hyperglycemic state. Infections are common triggers for HHS, leading to elevated body temperature.
Choice C rationale
Serum glucose levels of 800 mg/dL are indicative of HHS. HHS is characterized by extremely high blood glucose levels, often exceeding 600 mg/dL, without significant ketoacidosis.
Choice D rationale
Serum bicarbonate levels of 15 mEq/L are more indicative of DKA rather than HHS. In HHS, bicarbonate levels are usually within the normal range because there is no significant ketoacidosis.
Choice E rationale
Insidious onset is a hallmark of HHS. The condition develops gradually over days to weeks, unlike DKA, which has a more rapid onset.