Nutrition 4: Intravenous Nutrition

Question 1

Parenteral nutrition contents

Answer 1

amino acids, glucose, eelctrolytes, trace elements and vitamins via CENTRAL or peripheral vein

Question 2

Supplementary Parenteral Nutrition (SPN) vs Total Parenteral Nutrition (TPN)

Answer 2

SPN is given in ADDITION to oral/enteral feeds

TPN is the sole source of nutrition

Question 3

Parenteral Nutrition rules/considerations

Answer 3

• Glucose must be given via central vein to prevent thrombosis
• Enough phosphate must be provided to prevent hypophosphataemia and allow the phosphorylation of glucose
• Fructos and Sorbitol are added to avoid hypersomolar hyperglycaemic nonketotic acidosis
• Additives should not be added to fat emulsions unless compatibility is known