Bicarbonate System Internationale Reference Intervals (All Ages) (methodology):
   Black (African-American) Female Reference Interval
   Black (African-American) Male Reference Interval
   Hispanic (Mexican-American) Female Reference Interval
   Hispanic (Mexican-American) Male Reference Interval
   White Female Reference Interval
   White Male Reference Interval

Bicarbonate US Conversion Reference Intervals (All Ages) (methodology):
   Black (African-American) Female Reference Interval*
   Black (African-American) Male Reference Interval*
   Hispanic (Mexican-American) Female Reference Interval*
   Hispanic (Mexican-American) Male Reference Interval*
   White Female Reference Interval*
   White Male Reference Interval*

                                                               *: only available for paid members; sign up to view