March 2019

Anaphylaxis

(Anaphylactic Shock)

Anaphylaxis is a severe and potentially life-threatening reaction to a trigger such as an allergy. It's also known as anaphylactic shock.

Symptoms of anaphylaxis

Anaphylaxis usually develops suddenly and gets worse very quickly.

The symptoms include:

  • feeling lightheaded or faint

  • breathing difficulties – such as fast, shallow breathing

  • wheezing

  • a fast heartbeat

  • clammy skin

  • confusion and anxiety

  • collapsing or losing consciousness

 

There may also be other allergy symptoms, including an itchy, raised rash (hives), feeling or being sick, swelling (angioedema), or stomach pain.

What to do if someone has anaphylaxis

Anaphylaxis is a medical emergency. It can be very serious if not treated quickly.

If someone has symptoms of anaphylaxis, you should:

  1. use an adrenaline auto-injector if the person has one – but make sure you know how to use it correctly first
     

  2. call 112 for an ambulance immediately (even if they start to feel better) – mention that you think the person has anaphylaxis
     

  3. remove any trigger if possible – for example, carefully remove any wasp or bee sting stuck in the skin
     

  4. lie the person down flat – unless they're unconscious, pregnant or having breathing difficulties
     

  5. give another injection after 5-15 minutes if the symptoms don't improve and a second auto-injector is available

 

If you're having an anaphylactic reaction, you can follow these steps yourself if you feel able to.

Triggers of anaphylaxis

Anaphylaxis is the result of the immune system – the body's natural defence system – overreacting to a trigger.

This is often something you're allergic to, but isn't always.

Common anaphylaxis triggers include:

  • foods – including nuts, milk, fish, shellfish, eggs and some fruits
     

  • medicines – including some antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin
     

  • insect stings – particularly wasp and bee stings
     

  • general anaesthetic
     

  • contrast agents – special dyes used in some medical tests to help certain areas of your body show up better on scans
     

  • latex – a type of rubber found in some rubber gloves and condoms

 

In some cases, there's no obvious trigger. This is known as idiopathic anaphylaxis.

Preventing anaphylaxis

If you have a serious allergy or have experienced anaphylaxis before, it's important to try to prevent future episodes.

The following can help reduce your risk:

  • identify any triggers – you may be referred to an allergy clinic for allergy tests to check for anything that could trigger anaphylaxis
     

  • avoid triggers whenever possible – for example, you should be careful when food shopping or eating out if you have a food allergy
     

  • carry your adrenaline auto-injector at all times (if you have two, carry them both) – give yourself an injection whenever you think you may be experiencing anaphylaxis, even if you're not completely sure

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Angels Nursing Group

Tel:   (0034) 902 02 64 68

Angels Nursing Group S.L, Los Carasoles 27, Zurgena, 04650, Almeria - C.I.F B04762712