B. Braun´s parenteral nutrition solutions
are first choice

Parenteral nutrition (PN) is defined as the supply of vital nutrients bypassing the digestive tract.
Parenteral nutrition becomes necessary when it is not possible for the body to ingest sufficient nutrients via the oral/enteral route and to utilize these nutrients adequately. The choice between the enteral or parenteral route is decided very simply by the question "Is the gastrointestinal tract functional?"