iii. Anion gap vs. Non-anion gap
      a. High Anion Gap Metabolic Alkaloses
        1.  + charges on plasma proteins from  pH
        2. increased lactate production
        3. decreased lactate metabolism (e.g. in liver failure with
           hyperalimentation)
     b. Normal Anion Gap Metabolic Alkaloses
        1.  Ca++
        2.  Mg++
        3. paraproteins
        4. lithium