Syringes and Needles
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18 Terms
What are parenteral medications?
Drugs absorbed outside of the GI tract and administered via syringe
What is a bevel?
Sharp/Slanted ended of needle shaft used to penetrate skin/tissues
What is the needle shaft?
Hollow cylinder of Needle, also includes the bevel
What is the needle hub?
Attaches to the tip of the syringe
What is the tip?
Tip of the syringe that connects to the needle hub
What is the Barrel?
Body of syringe that holds medication
What are the calibration lines?
Measure medication doses
What is the plunger?
Rubber-tipped cylinder to fill or empty syringe
What is a retracting syringe?
Where the needle automatically retracts back into the syringe, activated after complete amount of med is administered
What is a retracting needle?
Activated with color coded activation tab, when laterally pressed the needle retracts into the safety chamber, activates either while needle is in patient or after removing
Regarding calibration lines on any size syringe, where is the zero line?
First line of the syringe
Calibration lines on a 3mL syringe
Longer calibration lines represent 0.5mL
Between each longer calibration line, there are small lines representing 0.1 (tenth)mL
Calibration lines on a 1mL syringe
Shorter calibration lines represent 0.01 (hundredth) mL
Longer calibration lines represent 0.1 (tenth) mL
Every 0.05mL is marked with a longer calibration line
Measuring medications within a syringe
To measure, use proximal end of the plunger (closest to tip)
First ring of plunger must cover the calibration line for accurate measurement
3mL syringe common usages
Measures most parenteral medications
IM, IV, ID, SubQ
5,6,10,12 mL syringe common usages
Used for doses >3mL
Commonly used for IV medications
Shorter calibration lines represent 0.2mL
20,30,40,50 mL syringe common usages
Used for large volume IV medications
Have mL and Ounce calibration lines
What is the needle gauge?
Needle Diameter (ex. 16G is a large diameter where 31G is a small diameter