Total parenteral nutrition in pregnancy: case review and guidelines for calculating requirements.

Although many aspects of the use of total parenteral nutrition (TPN) in pregnancy are controversial, the long-term sequelae of maternal malnutrition in fetal health are not. To avoid these complications, TPN is advocated for use in pregnancies complicated by maternal starvation. The purpose of this paper is to outline an easy to follow method for prescribing TPN solution to meet the needs of the gravid patients.