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MED143 PHARMACOLOGY
MED143 CH 04 KEY TERMS
| Term | Definition |
|---|---|
| MED143 PHARMACOLOGY CH 4 KEY TERMS | |
| abscess | localization of pus in any part of the body |
| acromion process | an extension of the shoulder blade that can be felt at the point where the upper arm meets the shoulder; a landmark for locating the deltoid injection site |
| aqueous | thin and watery |
| aspirate | to draw by suction; the process of pulling back on a syringe plunger to check for entry into a blood vessel during an injection |
| barrel | hollow cylinder with graduated markings on it that makes up the body of a syringe |
| flange | flared part of a syringe barrel; used to steady the syringe while pulling or pushing the plunge |
| gauge (G) | diameter (width) of the lumen of a needle; the smaller the gauge number, the wider the lumen; selection of gauge depends on the viscosity of the solution to be injected |
| gluteal arteries | large arteries that supply the muscles of the buttock area |
| greater trochanter | knob on the upper leg bone (femur) that can be felt where the leg joins the hip; one of the landmarks used for locating the dorsogluteal injection site |
| hub | broad part of an injection needle that attaches to the syringe |
| iliac crest | highest point on the hip bone; one landmark used to locate the ventrogluteal injection site |
| induration | hardening of a tissue caused by inflammation or edema |
| intravenous therapy | administration of fluids, electrolytes, medications, blood, or nutrients through a vein |
| lumen | hollow part of a needle through which medication flows |
| necrosis | death of tissue in a living body |
| needle cover | protective cover on a disposable injection needle; never put it back on the needle after administration |
| plunger | solid rod of a syringe that fits inside the barrel and pushes medication out under pressure |
| precipitate | solid particles that separate out from a solution as a result of a chemical reaction |
| reconstituting | the process of adding the recommended amount of fluid to dissolve; usually with a powdered drug |
| sciatic nerve | largest nerve in the body; pierces the buttocks and runs down the back of the thighs |
| shaft | the long portion of a needle that extends from the point to the hub and through which the medication passes |
| sloughing | shedding of dead tissue from a wound or sore |
| Standard Precautions | primary strategies for prevention of infection transmitted through blood, body fluid, nonintact skin, and mucous membranes |
| syringe | device used to inject or withdraw fluids from the body; consists of a plunger, barrel, and hub |
| tracking | backing up of medication in the channel through which a needle enters tissue |
| viscous | thick and sticky |
| Z-track | method of injection that minimizes tissue irritation by sealing the drug within muscle tissues |
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