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.
Midlines are longer than a regular IV. Midlines are usually put into a vein in the arm. Sometimes a leg vein is used for infants. It lasts longer than a regular IV, but not as long as a PICC line. It can usually be used for 2-4 weeks. Midlines are used for medications or fluids that do not irritate veins.