Parental medications
Intradermal
Subcutaneous
Intramuscular
Intravenous
Intradermal needle
25-27 G
1/4 to 5/8 inch
Subcutaneous needle
21-31 G
3/8 to 5/8 inch
Intramuscular needle
18-25 G
5/8 to 1.5 inch
Ampule
Safety while opening
Use filter needle or filter straw when pulling up medication
Vial
Inject air in first to withdraw solution
Wipe with alcohol first
Intradermal injections
TB testing/allergy testing
About 0.1mL of medication
5-15 degree angle
Goal is to produce a bleb
Intramuscular injections
Absorbed faster than subcutaneous injections due to rich blood supply
The ventrogluteal site
Located by placing the palm on the greater trochanter and the index finger toward the anterosuperior iliac sine
Vastus lateralis site
Identified by dividing the thigh into thirds, horizontally and vertically
Middle third, place with most muscle
Mostly used for infants 7 months and younger
Back lying with leg slightly flexed or sitting position
Deltoid muscle site
Located by palpating the lower edge of the acromion process-about two fingers length down (1-2 inches)
Most common site for adults (vaccines)
No more than 1 mL at this site
23-25 G 1 inch needle
Relax arm and flex the elbow
Dorsogluteal site
SHOULD NOT BE USED
Most risk of hitting nerve and causing damage
Considerations of IM injections
Dose 0.5 mL- 2mL depending on site (up to 3 mL for ventrogluteal in adults with well-developed muscles)
If more than 3mL-divide among 2 syringes and administer in two different sites
Assess the amount of muscle, type of solution, amount of adipose tissue, and age of the patient
Administration of IM injections
Minimize discomfort
Use smallest needle suited for the site and medication
Use two different needles-one to draw up, one to inject
Position pt to reduce muscle tension
Air lock method (add 0.25-0.5 mL of air)
Z track method!
Subcutaneous injections
Absorption is slower than IM route due to less blood supply
Abdomen and arms (faster)
Thigh and upper buttocks (slower)
Abdomen (even absorption)
0.5mL-1mL
90-degree angle when 2 inches of tissue can be grasped
45-degree angle when 1 inch of tissue can be grasped
Subcutaneous injection process
Clean site-start in center and work around
Allow area to dry
Pinch the skin
Insert the needle
Release the skin
Slowly inject medication
With draw needle
Do not massage site
Apply pressure w/ gauze
Record location
Rotate sites
Insulin
Needle-28-30 G 3/16 inch to 1 inch, 0.3mL-1mL
ONLY use insulin syringe
ONLY short or rapid acting insulins can be mixed with other insulins (regular and NPH)
NPH MUST be agitated
Nancy Reagan, RN
NPH air, regular air, regular withdraw, NPH withdraw