Seymour Dental – Dedicated personal care
Your friendly Dulwich Hill dentist, Sydney
Click for menu

Medical Emergencies in the Dental Practice 2021 – Anaphylaxis – Part 2 – Adrenaline

March 1, 2021

Anaphylaxis is a fast moving condition that needs to be monitored closely. The swelling and inflammatory response to the allergens (range from bee stings, antibiotics, aspirin, latex, and other medications; to all sorts of substances) begins to spread quickly throughout the body.

Anaphylaxis is a serious allergic reaction that is rapid in onset and may cause death. It typically causes more than one of the following: an itchy rash, throat or tongue swelling, shortness of breath, vomiting, light-headedness, and low blood pressure. These symptoms typically come on in minutes.


Histamine is the substance that is release by mast cells in the body to fight the threat of the allergens. These cells are found throughout the body. Adrenaline counteracts the effects of histamine; however each application only lasts 3-5 minutes. That is why EpiPens are not useful in this situation as it’s a single dose and that’s it.


The red bag emergency kit has glass vials of Adrenaline at 1:1000 (1mg/ml) concentrations. The Adrenaline is drawn out of the vials with a 1ml syringe and injected into the thigh muscle even through clothing. 

  • ADULT 0.5ML 
  • CHILD  0.25ML

Repeat dose every 3-5 minutes until signs and symptoms clear up.   

Roni giving a lifesaving Adrenaline shot into Albo's thigh who is going into anaphylaxis shock

If the airways start to constrict due to swelling then

  • Dilute Adrenaline to 1:5000 (mix 1:1000 with 4ml Saline) and administer via a nebuliser (a machine that helps you to breathe in a medicine as a mist through a mask) with 8Litres / min of oxygen
Red Bag ready to use

If the patient becomes unconscious then protect the airway with I-gel (an anatomical cuff placed down the throat to keep the airway open) and start compressions on the heart.

Please note – not all the details have been given here as this course is for health professionals.

Need an Appointment?

If you’d like to book an appointment with the dentist at Seymour Dental then call us in Dulwich Hill, Sydney on (02) 9564 2397 or
contact us

Next week

What our patients do – Luke the Writer