Injection methods vary significantly depending on the purpose and location of the injection. Here's a breakdown of several common types:
Intramuscular Injection (IM)
An intramuscular injection delivers medication deep into the muscles for quick absorption. Techniques to minimize discomfort include:
- Skin Spreading: Spreading the skin between the fingers of the non-dominant hand before injection.
- Z-Track Technique: Pulling the skin down to one side before injection. (Taylor & Lillis, 1997)
Healthline provides further details on intramuscular injections. StatPearls also offers information on intramuscular injections.
Intravitreal Injection
This procedure involves injecting medication directly into the vitreous humor, the gel-like substance filling the back of the eye, near the retina. This is usually performed by an ophthalmologist. MedlinePlus offers more details on intravitreal injections. The American Society of Retina Specialists also provides patient information.
Epidural Injection
Epidural injections are administered into the epidural space of the spine to treat back pain. This is distinct from epidural anesthesia used during childbirth or surgery. MedlinePlus details this procedure.
Botox Injections
Botox injections use multiple needles to inject botulinum toxin into a lower layer of the skin. The Mayo Clinic provides more information on Botox injections.
Platelet-Rich Plasma (PRP) Injection
PRP injections involve injecting concentrated platelets from the patient's own blood into the area needing treatment. The specific procedure varies depending on the area of the body. HSS details how PRP injections work.
Pre-filled Pen Injections
Many medications come in pre-filled pens for ease of self-administration. The specific instructions for these pens vary by medication. An example is provided by Dupixent.
Spring Injection (Software Development Context)
In the context of Spring Framework (Java), injection is the process of providing dependencies to a class. Manual injection can be done, but automatic injection via annotations or XML configuration is preferred. This Stack Overflow question addresses manual Spring injection.
Lethal Injection
Lethal injection is a method of capital punishment. Its precise method varies by jurisdiction, but typically involves a combination of drugs injected intravenously. More detail can be found on Wikipedia.
