pH > 7.42 = alkalemia
HCO3 > 28 =<unk> 
Always determine if there is also a concurrent primary respiratory process
expected pCO2 = 40 + 0.6(measured HCO3 - 24)
if pCO2>pCO2 expected, then there is also a primary respiratory acidosis
if pCO2<pCO2 expected, then there is also primary respiratory<unk> 
Always calculate AG to determine if concurrent primary<unk>  acidosis
expected pCO2 = 40 + 0.6(measured HCO3 - 24)
if pCO2>pCO2 expected, then there is also a primary respiratory acidosis
if pCO2<pCO2 expected, then there is also primary respiratory<unk>
Metabolic alkalosis
Urine Cl < 20 mEq/L
Metabolic acidosis
Vomiting
Anion gap acidosis
NG suction
Hypercapnia
Bulimia