This is an important test that is used to diagnose anaphylaxis and mast cell diseases.

Venous blood
1 tests included
5 days turnaround



About Tryptase

What is tryptase?

Tryptase is an enzyme produced by mast cells as part of an immune response.

Tryptase is typically present in low concentrations in the blood but spikes in response to a pathogen, peaking after 1-2 hours and then returning to normal levels over the course of several more. Mast cells also play a key role in allergic reactions and can produce anaphylaxis in extreme cases.

Elevated blood tryptase levels can indicate problems with the immune system including mastocytosis, mast cell activation syndrome or anaphylaxis.

Why take the test?

This test measures the level of tryptase in the blood. It is used to diagnose anaphylaxis and mast cell diseases.


What's tested

Mast Cell Activation

How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.