This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal Tubular And Obstructive Disorders, Subject name: Pediatrics
All are features of Bater syndrome EXCEPT? 
Select and explain. 
A. Hypokalaemia, B. Metabolic Alkalosis, C. Hypocalciuria, D. Salt wasting
C: Hypocalciuria
Answer: C: Hypocalciuria 
Explanation: Bater syndrome is an autosomal recessive disorder characterized by hypokalemia and metabolic alkalosis resulting from excessive chloride, potassium and sodium wasting in the thick ascending limb of the loop of Henle. In Bater syndrome: Hypochloremic Metabolic alkalosis, hypokalemia, hyponatremia, hypercalciuria and increased urinary chloride loss are seen. Elevated urinary levels of chloride (>20-30 mEq/L) are characteristic of Bater syndrome.