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.
Common uses are for medication and fluid administration. Peripheral Linesâ (PICC) a peripheral catheter inserted into a vein for prolonged intravenous access to administer medications over a long period of time. When inserted the tip of the catheter resides in the superior vena cava or cavoatrial junction. Common uses for PICC lines are chemotherapy, extended antibiotic regimens, total parenteral nutrition (TPN), and blood samples for laboratory tests.