Basic Adult Daily Requirements for Parenteral Nutrition

Water (/kg body weight/day)

25–40 mL

Energy* (/kg body weight/day)

Medical patient

25–35 kcal

Postoperative patient

25–35 kcal

Hypercatabolic patient

30–45 kcal

Critically ill patient with BMI 30–50 kg/m²

11–14 kcal/kg actual body weight

Critically ill patient with BMI > 50 kg/m²

22–25 kcal/kg ideal body weight

Amino acids (/kg body weight/day)

Medical patient

1.0–2.0 g

Postoperative patient

1.5–2.0 g

Critically ill/hypercatabolic patient

1.2–2.0 g

Continuous renal replacement therapy

1.5–2.5 g

Critically ill patient with class I or class II obesity

≥ 2 g/kg ideal body weight

Critically ill patient with class III obesity

≥ 2.5 g/kg ideal body weight

Minerals

Acetate

As needed to maintain acid-base balance

Calcium

10–15 mEq

Chloride

As needed to maintain acid-base balance

Chromium

≤ 10 mcg

Copper

0.3–0.5 mg

Magnesium

8–20 mEq

Manganese

55 mcg

Phosphorus

20–40 mmol

Potassium

1–2 mEq/kg

Selenium

60–100 mcg

Sodium

1–2 mEq/kg

Zinc

3–5 mg

Vitamins

Ascorbic acid

200 mg

Biotin

60 mcg

Cobalamin

5 mcg

Folate (folic acid)

600 mcg

Niacin

40 mg

Pantothenic acid

15 mg

Pyridoxine

6 mg

Riboflavin

3.6 mg

Thiamin

6 mg

Vitamin A

990 mcg

Vitamin D

5 mcg

Vitamin E

10 mg

Vitamin K

150 mcg