A complete list of empiric equations for assessing the adequacy
of compensation for acid-base disorders includes the following:

   1. Metabolic Alkalosis with Respiratory Compensation:
      a. pCO2 = last 2 digits pH = [HCO3-] + 15 (for [HCO3-] from 8-
         35) (true for any metabolic disorder with resp. compensation)
      b. pCO2 0.6-0.7 for [HCO3-] 1.0 mEq/l (source: Burton David
         Rose, Clinical Physiology of Electrolyte and Acid Base
         Disorders, 2E)
   2. Metabolic Acidosis with Respiratory Compensation:
      a. pCO2 = last 2 digits pH = [HCO3-] + 15  (for [HCO3-] from 8-
         35) (true for any metabolic disorder with resp. compensation)
      b. pCO2 = (1.5[HCO3-] + 8) +- 2 (Winters' equation)
      c. pCO2 by 1-1.3 means HCO3- 1 mEq
      d. pH = 7.([HCO3-] + 15)
   3. Respiratory Acidosis.
      a. Acute (no compensation)
         1. pCO2  by 10 mm Hg  ~=   pH 0.08
         2. (pH = 7.45 - ((pCO2/100) - 0.4) * .08)
      b. Chronic (with metabolic compensation)
         1.  pCO2 10 mm Hg  ~=   pH 0.03
         2. pH = 7.45 - (pCO2/100 - 0.4) * 0.03