Advanced Key Terms Of Central Line- Iv Line

PICC lines, or peripherally inserted central catheters, are a convenient healthcare treatment. A PICC line is a thin catheter that is inserted in the large veins near your forearm at the flex point. It can be inserted by a physician or by a specially trained nurse and is minimally invasive. People who can get PICC lines include "patients who have to receive IV therapy longer than five days, when there is difficulty maintaining peripheral access, for any infusions known to damage the inside of the vein, for infusion of total parenteral nutrition, patients with respiratory ailments that increase risk for using other central venous access devices, for patients receiving chemotherapy, and for any patients needing prolonged outpatient treatment that requires use of an IV." http://www.cpmc.org/learning/documents/nur-piccline-ws.pdf. I am going to further discuss how a PICC line is inserted, the benefits and the risks, safety of PICC lines, and caring for a PICC line.

Osmosis is described in one of three ways when comparing more than one solution. The cell’s external and internal environment helps determine tonicity, which is defined as how the cell reacts to its environment. When the cell’s environment is equal in osmolarity to itself and there is no change, it is considered an isotonic solution. When the environment has a higher osmolarity, shrinkage occurs and it is considered a hypertonic solution. When the environment has a lower osmolarity, swellings occurs and it is considered hypotonic.

The concentration of dissolved substances is greater in the extracellular fluid than in the cytoplasm. Hypertonic Solution Concentration of dissolved substances (solute) Concentration of water (solvent) What happens to an animal cells? Inside the cell Less Greater Outside the cell Greater Less Membrane

Passive transport can occur during osmosis and diffusion. During osmosis, water molecules diffuse down a concentration gradient from an area of high concentration to an area of low concentration through a selectively permeable membrane (Harley et al., 42-44). Tonicity refers to the relative concentration of solutes in a solution. They can be labeled as isotonic, hypotonic, or hypertonic. Isotonic solutions have the same concentration of solutes inside and outside of the cell.

An IV may be placed in your child's arm. The IV will deliver a cold, saltwater liquid (saline solution) through your child's

A peripherally inserted central catheter or PICC line “is a thin soft flexible tube” (Peripherally Inserted Central Catheter (PICC). (2015). It is usually inserted in the upper arm just above the elbow in a main vein that will lead to the heart where the blood flows more rapidly. Midlines are inserted usually into the vein in the arm. Sometimes you will need to use a leg vein when caring for infants. They last longer than a regular IV, but not as long as a PICC line. “It can usually be used for 2-4 weeks” (Peripherally Inserted Central Catheter (PICC). (2015). The central venous catheter is “placed into a large vein leading into the heart and comes out through a small opening in the chest area” (Peripherally Inserted Central Catheter (PICC). (2015). which they call the exit site. The big

Now I want to talk about vascular access devices. They can be catheters as well as ports and are for repeated access. This includes central venous catheter, peripherally inserted central catheters and implanted ports. (Potter) A central venous catheter is a way to provide medications, nutrition, fluid, and blood products for a long period of time. The difference of a central venous catheter and peripheral intravenous catheter is, the central venous is usually inserted in a vein that goes directly to the heart. Also, central venous catheters

7. Osmosis is the process in which water diffuses across a selectively permeable membrane. The three types of cell environment include a hypertonic, isotonic, and hypotonic. In a hypertonic environment, the cell environment have more solute concentrations outside than inside of the cell, which results in more water

The temperature of the solutions and the difference in concentration of the ion or molecule between the sides of the membrane

Osmosis: Osmosis is the movement of fluid from an area of lesser concentration to an area of greater concentration of solutes. Glucose is added to the dialysate and creates an osmotic gradient across the membrane, pulling excess fluid from the blood.

Tonicity is the direct relation to the osmolarity of a solution, affects osmosis by determining the direction of water flow. Extracellular solution can change the volume of a cell by affecting osmosis. A solution with low osmolarity has a greater number of water molecules relative to the number of solute particles; a solution with high osmolarity has fewer water molecules with respect to solute particles. In a situation in which solutions of two different osmolarities are separated by the permeable membrane to H2O will change from the side of the membrane with lower osmolarity to the side with higher osmolarity (Boundless, 2015). Isotonic solutions are two solutions that have the same concentration of a solute. Hypertonic solution is one of two solutions that has a higher concentration of a solute whereas hypotonic solution has a lower concentration of a solute (Pearson Education. Inc, 2015). Osmosis is known as the movement of H2O across a semipermeable membrane from a lower solute concentration to a higher solution concentration. If two solutions of varying concentrations are disconnected by a semipermeable membrane,

osmosis diffusion of water across a selectively permeable membrane depending on the concentration of solutes on either side of the membrane isotonic solution in cells, a solution in which the concentration of dissolved substances in the solution is the same as the concentration of dissolved substances inside a cell hypertonic solution in cells, a solution in which the concentration of dissolved substances outside the cell is higher than the concentration inside the cell; causes a cell to shrink as water leaves the cell hypotonic solution in cells, a solution in which the concentration of dissolved substances is lower in the solution outside the cell than the concentration inside the cell; causes the cell to swell and possibly burst as water

• A catheter will be inserted into a blood vessel that carries blood away from the heart (arterial catheter). This catheter will be used to check blood pressure and get blood samples during the procedure.

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration or along a concentration gradient which is essentially the same. This continues until the molecule has reached equilibrium and distribution is equal, yet the molecules are still moving. For example, when a dye crystal is placed in water, it is condensed into one area. As it dissolves the molecules moved from a higher concentration to a lower concentration and eventually the dye molecules are equally distributed throughout the water in the container. In this case, the dye molecule is the solute or the thing that is being dissolved and the solvent is what is able to dissolve something and in this example it would be the water.

A selectively permeable membrane is a flexible boundary that only allows certain substances in and out of the cell. There are three different types of osmosis including isotonic, hypotonic, and hypertonic. Isotonic osmosis is when a cell in a solution that neither gains nor loses water. The water and molecules in the solution go inside and outside of the cell at the same rate. Hypotonic osmosis is when the solute concentration is higher inside the cell. Water diffuses into the cell and causes the cell to blow up or swell. Water is going into the cell at a faster rate than it is going out. Hypertonic osmosis is when the solute concentration is higher outside the cell than inside the cell. Water diffuses out of the cell and it causes the cell to shrink or shrivel up (Gale,