Chapter 37 Flashcards
(46 cards)
A small, sealed glass drug container that must be broken to withdraw medication
Ampule
Instillation of 0.1-0.2 mL of air following the injection of the medication for the purpose of reducing tissue irritation along the path of the needle.
Air-Lock
An injection into the dermis (skin)
Intradermal (ID)
An injection into the subcutaneous layer below the skin and above the muscle layer
Subcutaneous (Subcut)
An injection into the muscle
Intramuscular (IM)
The metabolism of oral medication by the liver, decreasing the effect of the medication. Can be passed using sublingual, buccal, and parenteral routes.
First-Pass Metabolism
4 Advantages of Parenteral Administration
- Bypasses the GI Tract; No irritation
- Rapid onset time compared to the oral route
- Ease of admin to uncooperative or unconscious patients
- Better absorption of drugs that are otherwise poorly absorbed via the oral route
5 Disadvantages of Parenteral Administration
- Invasive and uncomfortable for the patient
- Expensive
- Requires additional supplies and equipment
- Requires qualified personnel to administer
- Carries a risk of infection and nerve injury
used for intramuscular or subcutaneous injections
Standard Syringe
Used only for injecting insulin
Insulin Syringe
Used for small volumes of meds and TB Test
Tuberculin Syringe
Single dose, ready to use syringes
Prefilled Syringe
What are the parts of a syringe?
Barrel
Plunger with flange on the end
Tip for connecting to the needle
Has threaded grooves that screw into the needle hub and lock it in place
Luer-Loc Tip
Has a smooth, slightly tapered tip that inserts into the needle hub
Slip-Tip
Parts of a needle
Angled bevel on the tip of the needle
Cannula or shaft
Plastic Hub
Safety Guard
To prevent accidental needle sticks you should?
Never Recap a Used Needle
What should you do following removal of a needle from an insertion site?
Immediately activate the Needle Guard
The bevel should always face which direction when piercing the skin?
Bevel should always be upward
Refers to the diameter of the needle and is indicated by numbers: The larger the number, the seller the diameter
Gauge of a needle
Gauge used depends on?
Viscosity of the medication
Route of medication
Size of patient and muscle mass
Length of intradermal needle?
1/4’’ to 5/8’’ in length with a very tiny diameter between 25 G and 30 G
Length of subcutaneous needle?
Between 3/8’’ and 7/8’’ in length with a diameter between 24 G and 29 G
Length of a intramuscular needle?
1’’ to 1.5’’ in length, with a diameter between 20 G and 22 G