The ALEX test is a multiplex allergy test that measures total IgE and specific IgE antibodies against hundreds of allergens.

It checks for sensitivities to environmental and food allergens, including pollen, dust mites, pets, nuts, dairy, and more.

It uses ELISA-based technology to measure IgE antibody binding to allergen components in your blood sample.

IgE (Immunoglobulin E) is an antibody associated with allergic reactions.

IgE levels are typically expressed as:

IgE (kU/L) = measured antibody binding intensity calibrated against standards

It is highly accurate due to component-resolved diagnostics and broad allergen coverage.

CRD identifies specific allergenic proteins rather than whole allergen extracts.

Yes, it detects a wide range of food allergens including nuts, milk, eggs, and seafood.

Yes, including pollen, mould, dust mites, and animal dander.

Typically over 300 allergen extracts and components.

No, antihistamines do not affect blood test results.

It is blood-based, more comprehensive, and unaffected by medications.

Total IgE measures overall allergic tendency, while specific IgE identifies reactions to particular allergens.

Total IgE ≈ sum of all allergen-specific IgE + baseline IgE production

Yes, it distinguishes between true allergies and cross-reactive proteins.

When similar protein structures trigger reactions to multiple allergens.

Typically around 7 working days

Greater precision in diagnosis and risk assessment.

No fasting is required.

Yes, it identifies pollen-specific IgE.

Yes, including cat and dog dander components.

A mild allergic reaction to certain fruits and vegetables linked to pollen allergy.

Yes, especially when skin testing is not possible.

Yes, it helps identify targets for allergy shots or drops.

Typically:

Class 0: <0.3 kU/L (negative)

Class 1+: ≥0.3 kU/L (sensitisation detected)

If the ALEX allergy test detects sensitisation to specific allergens, the next step is to review your results with a GP. You should share your report so they can assess your symptoms alongside the findings. In some cases, a referral to a specialist such as an immunologist or allergologist may be recommended to carry out further investigations and confirm a clinical diagnosis. This is important because a positive IgE result indicates sensitisation, but not always a clinically relevant allergy.

No, Unlike the other test sold on Medimob Screening, the ALEX blood test does not include a GP-written report. However, the results are presented in a clear, structured, and self-explanatory format, showing total IgE levels and specific IgE responses to each allergen tested. If needed, you can take the report to your GP or specialist for further interpretation.

Your results are delivered via email as a secure, password-protected document. This ensures your medical information remains confidential while allowing you to easily access and share your report with healthcare professionals if required.