Investigation of Perioperative Anaphylaxis

Optimal Testing Time

The timing of allergy testing can be important to get the most accurate results. For skin testing, it is best to wait at least 4-6 weeks after a reaction for testing to be considered reliable.

The most important element of investigating intra-operative anaphylaxis is “skin testing”, where injections or skin pricks are used to directly observe evidence of allergy to a drug in a safe and controlled fashion. This is what we use at QARC to determine which drug caused your reaction and which other drugs are safe. 

Although we may recommend that you attend for an initial consultation to discuss your reaction and plan for investigations as soon as possible, the actual testing itself is most accurate and reliable when performed at least 4 to 6 weeks after the reaction.

Testing prior to 4 weeks may produce unreliable results and is not recommended. Over very long periods of time (months to years) the response to skin testing may change and become unpredictable. QARC staff will help you to make the most appropriate booking to see us.