IV Therapy Part II – Flashcards

catheter placed in a large vein in neck, chest, or groin. It is used to administer medications or fluids, obtain blood tests, and measure central venous pressure.

of drugs mixed together, and IV fluids.

aka saline lock, flush -is used to keep catheter clean and open and flowing freely *this is not the same heparin used for the body to prevent blood clotting

allowing material to suspend in a solvent over time

infuses fluids, medications, or nutrients into a patients circulatory system

a hypodermic injection into a vein for the purpose of instilling a single dose of medication, injecting a contrast medium, or beginning an IV infusion of blood, medication, or a fluid solution, such as saline or dextrose in water.

-A piggyback is a small (25 to 250 mL) IV bag or bottle connected to a short tubing line that connects to the upper Y-port of a primary infusion line or to an intermittent venous access (Fig. 31-26). The label on the medication follows the ISMP IV piggyback medication label format. -The piggyback tubing is a microdrip or macro drip system. The set is called a piggyback because the small bag or bottle is higher than the primary infusion bag or bottle. In the piggyback setup the main line does not infuse when the piggybacked medication is infusing. The port of the primary IV line contains a back-check valve that automatically stops flow of the primary infusion once the piggyback infusion flows. -After the piggyback solution infuses and the solution within the tubing falls below the level of the primary infusion drip chamber, the back-check valve opens, and the primary infusion again flows.

The intravenous or IV push or bolus is a means of delivering additional medication through an intravenous line, administered all at once, over a period of a minute or two. This contrasts with IV drip techniques where medicine is slowly delivered from an IV bag. An IV push has the advantage of being able to give extra medicine, as needed, without having to inject the patient elsewhere, and it can rapidly get this medicine into the body since it's injected directly into the bloodstream. This technique also comes with noted cautions, since not all medicines can be delivered this way and some may cause extreme irritation or toxically high blood levels of a medicine, if they are given too quickly.

An IV bolus involves introducing a concentrated dose of a medication directly into the systemic circulation (Skill 31-6 on pp. 631-635). Because a bolus requires only a small amount of fluid to deliver the medication, it is an advantage when the amount of fluid that the patient can take is restricted. The IV bolus, or "push," is the most dangerous method for administering medications because there is no time to correct errors. In addition, a bolus may cause direct irritation to the lining of blood vessels. Before administering a bolus confirm placement of the IV line. Never give a medication intravenously if the insertion site appears puffy or edematous or the IV fluid cannot flow at the proper rate. Accidental injection of a medication into the tissues around a vein causes pain, sloughing of tissues, and abscesses, depending on the composition of the medication. (Potter 610)

a catheter (small, flexible tube) placed into a peripheral vein in order to administer medication or fluids. Upon insertion, the line can be used to draw blood.The catheter is introduced into the vein by a needle (similar to blood drawing), which is subsequently removed while the small tube of the cannula remains in place. The catheter is then fixed by taping it to the patient's skin

= saline flush, most common An intermittent venous access (commonly called a saline lock) is an IV catheter capped off on the end with a small chamber covered by a rubber diaphragm or a specially designed cap. Special rubber-seal injection caps usually accept needle safety devices (Potter 611)