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To provide a recommendation on proper electrolytes management a more information needed. However, generally managing electrolytes in PN is an art rather than a science. The quantity of electrolytes which should be added to PN is determined by several factors:

1. The existence of abnormal sources of electrolyte loss e.g. Diarrhea, nasogastric suction, fistula

2. Renal function

3. Medication profile (don’t forget IV fluids) e.g. Chronic use of PPI =hypomagnesemia

4. Nutrition history

5. Past medical and surgical histories

Remember:

· More dextrose = more electrolytes

· Potassium affected by acid base base disorder (if acidosis exist use acetate) and potassium affected by magnesium level

· Sodium level affected by fluid status