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.
1 Getting this medicine through a PICC or midline may help prevent vein or skin damage.  You often need blood transfusions or blood drawn for tests. If you need to have blood transfusions often, you may need a PICC or midline. Blood samples may be collected through a PICC or midline catheter.