Lesson 29: How to Use an Auto-Injector Pen
🎬 Watch the Lesson Video
📘 Lesson Summary
In a severe allergic reaction, an adrenaline auto-injector can be life-saving. It works by helping to open the airways, improve breathing and support circulation.
In this lesson, you will learn when to use an auto-injector and how to administer it safely.
⭐ When to Use an Auto-Injector
An auto-injector should be used if a casualty is showing signs of anaphylaxis, such as:
- Difficulty breathing
- Swelling of the face, lips or throat
- Wheezing or persistent coughing
- Feeling faint or collapsing
- Difficulty speaking or swallowing
If in doubt, give the auto-injector. Delaying treatment can be life-threatening.
💉 Types of Auto-Injectors
There are different types of adrenaline auto-injectors, including:
- EpiPen
- Jext
All work in a similar way, but you should always follow the specific instructions for the device available.
⚠️ Important
Some older devices, such as Emerade, are no longer routinely used in the UK. Always follow current local guidance and use the casualty’s prescribed device where available.
🩺 How to Use an Auto-Injector
Follow these general steps:
- Stay calm and reassure the casualty
- Call 999 / 112 and state “anaphylaxis”
- Remove the safety cap
- Hold the device firmly in your fist
- Place the tip against the outer thigh
- Push firmly until you hear or feel a click
- Hold in place for the recommended time (usually a few seconds)
- Remove the device safely
The injection can be given through clothing if necessary.
🚨 After Giving the Injection
- Keep the casualty lying down (or sitting if breathing is difficult)
- Monitor their breathing and level of response
- If symptoms do not improve, a second dose may be given after 5–15 minutes if available
- Always ensure emergency services are on their way
🌬️ New Development: Nasal Adrenaline (Neffy)
A nasal adrenaline spray, sometimes known as Neffy, is a newer treatment for anaphylaxis.
- It is sprayed into the nose instead of using a needle
- It may be used in certain settings or for individuals prescribed it
- Availability and guidance may vary
If available, follow the instructions provided with the device.
⚠️ Important Points
- Always use the casualty’s own prescribed medication if available
- Do not delay treatment if symptoms are severe
- The benefits of giving adrenaline far outweigh the risks
- Only use equipment you have been trained to use
🧩 Activity – Using an Auto-Injector
In an emergency, it is important to follow the correct steps when using an adrenaline auto-injector. Complete the activity below by putting the steps in the correct order. This will help you understand how to respond quickly and safely during anaphylaxis.
💡 Key Takeaways
- Auto-injectors are used to treat anaphylaxis
- Act quickly — do not delay
- Inject into the outer thigh
- Call 999 / 112 immediately
- A second dose may be needed if symptoms continue, administer into the opposite thigh
- Neffy is a newer, needle-free alternative in some cases