Intravenous (parenteral) nutrition is given as a drip directly into the bloodstream via a large vein (blood vessels). In Sweden, this type of home treatment has existed since the beginning of the 1980s. HPN patients need intravenous nutrition for a long time, throughout their upbringing or perhaps throughout their lives. These children, adolescents and adults are not able to absorb nutrients from food in the usual way through the gastrointestinal tract. In this situation, malnutrition can be avoided by supplying nutrition directly into the bloodstream via a so-called venous catheter or venous port. In order to be able to manage the treatment with intravenous nutrition at home, it is important that everyone involved receives a thorough education in the treatment method before going home.