Table 5: Electrolytes requirements during critical illness [18].

Element

Recommended Enteral

Recommended Parenteral

Sodium  (mEq)

22

60 -150

Potassium (mEq)

51

70-180

Chloride  (mEq)

22

60-150

Magnesium  (mEq)

20-34

10-30

Calcium  (mEq)

65

10-20

Phosphorus (mmol)

40

10-40