injectable meds Flashcards
(56 cards)
What does a lower needle gauge number indicate?
A thicker needle.
What are the three sterile parts of a syringe?
Barrel, tip, and plunger.
What is the usual syringe size range for parenteral injections?
1–5 mL
When are filter needles used?
When drawing up medication from ampules (prevent glass shards)
never used for administration.
What does the length of a needle depend on?
Injection site depth and patient body type.
What is the angle for intradermal injections?
5–15 degrees.
IM injections
angle:
length:
gauge:
A: 90 deg
L: 5/8 - 1.5 in
G: 20 - 25
SUBQ injections
angle:
length:
gauge:
A: 45 or 90 deg
L: 3/8 - 5/8
G: 25 - 27
Intradermal injections
angle:
length:
gauge:
A: 5 - 15 deg
L: 1/2 - 5/8 in
G: 25 - 27
What is the angle for subcutaneous injections?
45 or 90 degrees based on fat thickness.
What is the angle for intramuscular injections?
90 degrees.
What is a Carpujet?
A pre-filled, single-dose medication cartridge used with a reusable holder.
What are ampules?
Sealed glass containers holding a single dose of medication.
why are ampules used?
the chemical strucuture of the medication needs to a certain temperature + environment to remain stable
What needle must be used to draw from an ampule?
A filter needle.
What is a vial?
A small bottle with a rubber stopper that holds single or multi-dose meds.
Why is air injected into a vial before withdrawing medication?
To prevent vacuum formation.
What is reconstitution?
Adding diluent to a powdered med to prepare it for injection.
What’s the absorption rate for IM injections?
Fast (why? highly vascular)
What’s the absorption rate for subcutaneous injections?
Moderate.
What’s the absorption rate for intradermal injections?
Slow
What is the volume limit for intradermal injections?
0.5 mL.
What is the preferred syringe for intradermal injections?
Tuberculin syringe.
What sites are used for subcutaneous injections?
Abdomen, back of arm, thigh.