After teaching a patient with a history of renal calculi, the nurse assesses the patient’s understanding. Which statement made by the patient indicates a correct understanding of the teaching?

Choice A reason: Antibiotics are not used to treat renal calculi unless there is a concurrent urinary tract infection. Stones themselves do not require antibiotics unless infected. Choice B reason: Eliminating all calcium from the diet is not recommended. In fact, low dietary calcium can increase the risk of oxalate stone formation. Balanced calcium intake is important for prevention. Choice C reason: Aspirin is not a known contributor to kidney stone formation. While certain medications can affect renal function, aspirin is not directly linked to stone development. Choice D reason: Increasing fluid intake to at least 3 liters per day helps dilute urine and reduce the concentration of stone-forming substances. This is a cornerstone of kidney stone prevention.