zero line
the first line on the barrel of the syringe.
The syringe is read from the:
proximal end of the plunger.
parenteral medication doses usually have a volume of between:
1 and 3 mL.
1 mL (TB) Syringe
3 mL Syringe
5 and 6 mL Syringes
10 and 12 mL Syringe
20 and 30 mL Syringes
50 and 60 mL Syringes
Needle Sizes
2 sets of numbers:
- Length (inches) - Diameter (gauge)
5/16’’
- subcut
3/8’’
- intraderrmal
1/2’’
- Subcut, ID
5/8’’
- subcut
1’’
- IM, IV
1.5 ‘’
- IM
2’’
- Deep IM
Common needle gauges used for subcut and ID injections:
31G, 30G, 29G, 28G, 27G, 26G
standard needle gauge used for most subcut injections:
25G
Standard needle gauge for most IM injections:
23G, 22G, 21G
Can be used for IV medication preparation:
19G, 18G