One discussion this week involved how to perform basic TPN metabolite calculations.
Reference: Madsen H and Frankel EH. The hitchhiker’s guide to parenteral nutrition management for adult patients. Practical Gastroenterology. 2006 July. Retrieved from https://www.practicalgastro.com/pdf/July06/MadsenArticle.pdf.
Summary: This was discussed as a possible question on boards. Below are three tables, taken directly from the article referenced.