Hypodermic Syringe Measurement Chapter 8 Hypodermic Syringe Measurement

Syringe Volume Sizes 0.5 mL 1 mL 3 mL 5 mL 10 mL 20 mL 60 mL

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

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

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

3 mL Syringes (cont’d) © Cengage Learning 2015 (continues)

3 mL Syringes (cont’d) 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: For example, 0.1 mL, 0.6 mL, 0.9 mL (continues)

3 mL Syringes (cont’d) What is the volume of medication in the syringe? © Cengage Learning 2015

Safety Syringes Developed to decrease risk of accidental, contaminated needle sticks. Variety currently manufactured. Most health-care facilities use one brand. Become familiar with type used in local clinical facility.

Tuberculin (TB) Syringes Most common volume is 1 mL Calibrated in hundredths Noted by shorter calibration marks Each tenth calibration mark has Arabic number printed on syringe barrel. For example, .1, .2, .3, etc. Noted by longer calibration marks (continues)

TB Syringes (cont’d) © Cengage Learning 2015 (continues)

TB Syringes (cont’d) What is the volume of medication in the syringe? © Cengage Learning 2015

Larger Volume Syringes Most common: 5 mL 10 mL 20 mL 60 mL (continues)

Larger Volume Syringes (cont’d) Shorter calibration marks on 5 mL and 10 mL syringes measure 0.2 mL. Longer calibration marks measure 1 mL.

5 mL Syringe © Cengage Learning 2015

10 mL Syringe (continues) © Cengage Learning 2015

10 mL Syringe (cont’d) What is the volume of medication in the syringe? © Cengage Learning 2015