Terms and Definitions Flashcards
Air Embolism
Obstruction of the circulation system by air that has gained entrance to veins
Anastomosis
Surgical formation of a passage between two blood vessels
Anoxic
Suffering from a reduced supply of oxygen
Aseptic Technique
A mechanism employed to reduce potential contamination
Aseptic Preparation
A procedure designed to preclude contamination by microorganisms
Apirate
To draw by suction- typically performed prior to injection by drawing blood through a syringe
Artery
A vessel that carries blood from the heart through the body
Back check valve
Device in primary tubing that assists in preventing backflow of secondary fluid into the primary line
Bactericidal
Destruction of bacteria
Bacteriostatic
Inhibiting or slowing the growth of bacteria
Blanching
Occurs when the skin takes on a whiteish appearance as blood flow to the region is prevented. This can be indicative of IV extravasation
Bolus
A dose of a substance (such as a drug) given intravenously; specifically, a large dose given for the purpose of rapidly achieving the needed therapeutic concentration in the bloodstream (sometimes referred to as “IV push”). Med given quickly to elicit a rapid response from the medication being administered or increase level of med within the blood system
Capillaries
Minute blood vessels that connect the smallest arterioles to the smallest venules. Have a single layer of epithelial cells enabling blood and tissue fluid the ability to exchange various substances (gases, fluids, electrolytes, salts and nutrients)
CI
Continuous Infusion
uninterrupted injection of liquid into a vein
Cannula
A flexible tube containing a needle which may be inserted into a blood vessel. The caliber or cannula is indicated in gauge, with 14 being a very large cannula and 24-26 the smallest. The most common sizes are 16-gauge (midsize line used for blood donation and transfusion) and 18- and 20-gauge (all-purpose line for infusions and blood draws). A sheath to infuse fluid into the vein.