A nurse is caring for a client who has a new diagnosis of urolithiasis. Which of the following should the nurse identify as an associated risk factor?

Choice A reason: Diuretics, particularly thiazides, can reduce urinary calcium excretion, potentially decreasing kidney stone risk. However, some diuretics may increase stone formation indirectly, but they are not a primary risk factor compared to genetic predisposition. Choice B reason: Family history is a well-established risk factor for urolithiasis, as genetic predispositions influence urinary chemistry (e.g., hypercalciuria, hyperoxaluria). Inherited metabolic traits increase stone formation likelihood, making this a significant risk factor for the condition. Choice C reason: BMI less than 25 (normal weight) is not a risk factor for urolithiasis. Higher BMI (>30) is associated with increased stone risk due to metabolic changes like insulin resistance, making this choice incorrect. Choice D reason: Hypocalcemia is not typically linked to urolithiasis. Hypercalcemia or hypercalciuria (often genetic) increases calcium stone formation, but low calcium levels do not contribute significantly to stone risk, making this incorrect.