Which condition involves kidney stones formed from metabolic abnormalities?

• A. Abdominal Aortic Aneurysm (AAA)
• B. Renal Calculi
• C. Anemia
• D. Mittelschmerz

Answer: (B)

The main concept is how stones form in the kidney due to metabolic factors. Renal calculi are stones that develop when minerals in urine become overly concentrated and crystallize. Metabolic abnormalities—like excess calcium or oxalate, high uric acid, or cystine—push urine toward these mineral precipitations, leading to stone formation. This is why that option is the correct answer: it specifically describes kidney stones arising from metabolic issues.

The other choices don’t fit because they describe conditions unrelated to kidney stone formation. An abdominal aortic aneurysm is a dilation of the aorta, not a stone problem. Anemia is a deficiency of healthy red blood cells or hemoglobin. Mittelschmerz is ovulatory pain around the menstrual cycle.