Effect of discharge current on cell voltage and power. When current is drawn from a cell, the cell volta ge falls due to polarization. The higher the current, the greater the voltage drop.
Topics | Critical Care | How is total parenteral nutrition (TPN) given? Total parenteral nutrition (TPN) is given through a vascular access device such as a Peripheral Intravenous line, Midline or most preferably a Central Line. The central line is the most common access for TPN administration.
But I'm very curious. What is the difference between TPN and PPN? Why can you only give TPN through a central line? What would happen if you gave it through a peripheral IV or a midline? Also, I thought I heard someone say that you can't give vancomycin through a midline.