ACID-BASE ANALYSIS-STEP 2
From NeuroRehab.wiki
SUMMARY
1. Calculate the Anion Gap (use 10 +/- 3 as normal) and its change (simply the calculated anion gap - 10).
2. Anion gap = 
3. Anion Gap > 13 implies High Anion Gap Metabolic Acidosis (HAGMA).
