Private H. pylori Antigen – Stool (RF) Stool Test in the City of London

Allergies occur when the immune system reacts to a substance that is normally harmless, such as certain foods, pollen, animal dander, or dust mites. These reactions are mediated by an antibody called immunoglobulin E (IgE).

Blood-based allergy testing measures specific IgE antibodies to individual allergens. This can help identify triggers that may be causing symptoms such as skin reactions, digestive problems, respiratory issues, or anaphylaxis.

What the H. pylori Antigen – Stool (RF) Measures

• Specific IgE antibodies to individual allergens
• Total IgE levels — an overall measure of allergic antibody activity
• Component-resolved diagnostics — where applicable, identifies specific allergenic proteins

When This Test May Be Helpful

• Suspected food allergies or intolerances
• Hay fever, allergic rhinitis, or seasonal symptoms
• Eczema, urticaria (hives), or unexplained skin reactions
• Asthma with a suspected allergic trigger
• A history of anaphylaxis or severe allergic reactions
• Identifying specific triggers to inform allergen avoidance
• Pre-travel or occupational allergy assessment

Understanding Your Results

Results are typically available within 3 days" and are delivered securely.

A positive specific IgE result indicates sensitisation to a particular allergen, meaning your immune system has produced antibodies against it. However, sensitisation does not always mean you will experience clinical symptoms on exposure.

Allergy test results should be interpreted alongside your clinical history. We recommend discussing positive results with your GP or an allergy specialist, who can advise on allergen avoidance strategies and management.