© 2009 delmar, cengage learning chapter 8 hypodermic syringe measurement
TRANSCRIPT
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© 2009 Delmar, Cengage Learning
Chapter 8
Hypodermic Syringe Measurement
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© 2009 Delmar, Cengage Learning
Syringe Volume Sizes
• 0.5 mL
• 1 mL
• 3 mL
• 5 mL
• 10 mL
• 20 mL
• 60 mL
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Syringe Calibrations
• Regardless of syringe’s volume, calibrated in milliliters– Except specialized insulin syringes
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How to Read a Syringe
• From top/front ring
• First long calibration always zero
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3 mL Syringes
• Most common
• Should be calibrated using metric unit mL– Some still include calibrations in cubic centimeter (cc)
• Essentially identical to mL
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© 2009 Delmar, Cengage Learning
3 mL Syringes
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3 mL Syringes
• Shorter calibration marks indicate tenths of a mL
• Longer calibration marks indicate ½, 1, 1½, 2, 2½, and 3 mL
• Tenths of a mL written as decimal fractions– E.g., 0.1 mL, 0.6 mL, 0.9 mL
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© 2009 Delmar, Cengage Learning
3 mL Syringes
• What is the volume of medication in the syringe?
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Safety Syringes
• Developed to decrease risk of accidental, contaminated needle sticks
• Variety currently manufactured
• Most health care facilities use some brand
• Become familiar with type used in local clinical facility
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Tuberculin (TB) Syringes
• Most common volume 1 mL
• Calibrated in hundredths– Noted by shorter calibration marks
• Each tenth calibration mark has Arabic number printed on syringe barrel– E.g., .1, .2, .3, etc.
– Noted by longer calibration marks
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TB Syringes
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© 2009 Delmar, Cengage Learning
TB Syringes
• What is the volume of medication in the syringe?
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Larger Volume Syringes
• Most common:– 5 mL
– 10 mL
– 20 mL
– 60 mL
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Large Volume Syringes
• Shorter calibration marks located on 5 mL and 10 mL syringes measure 0.2 mL
• Longer calibration marks measure 1 mL
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5 mL Syringe
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10 mL Syringe
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10 mL Syringe
• What is the volume of medication in the syringe?