Chapter 8

1. Chapter 8 Hypodermic Syringe Measurement

2. Syringe Volume Sizes • 0.5 mL • 1 mL • 3 mL • 5 mL • 10 mL • 20 mL • 60 mL

3. Syringe Calibrations • Regardless of syringe’s volume, calibrated in milliliters • Except specialized insulin syringes

4. How to Read a Syringe • From top/front ring • First long calibration always zero

5. 3 mL Syringes • Most common • Should be calibrated using metric unit mL • Some still include calibrations in cubic centimeter (cc) • Essentially identical to mL

6. 3 mL Syringes

7. 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

8. 3 mL Syringes • What is the volume of medication in the syringe?

9. 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

10. 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

11. TB Syringes

12. TB Syringes • What is the volume of medication in the syringe?

13. Larger Volume Syringes • Most common: • 5 mL • 10 mL • 20 mL • 60 mL

14. Large Volume Syringes • Shorter calibration marks located on 5 mL and 10 mL syringes measure 0.2 mL • Longer calibration marks measure 1 mL

15. 5 mL Syringe

16. 10 mL Syringe

17. 10 mL Syringe • What is the volume of medication in the syringe?