Differences between Bartter and Gitelman syndromes - McMaster Textbook of Internal Medicine

Table 11.9-1. Differences between Bartter and Gitelman syndromes
	Bartter syndrome	Gitelman syndrome
Age of onset	Neonatal to childhood	Late childhood to adulthood
Serum magnesium	Low to normal	Low
Urinary calcium	High	Low
Urinary concentration ability	Reduced	Normal