Check for IgE antibodies to shrimp and tropomyosin, the protein behind most reactions to crustaceans, using a capillary blood sample you collect at home.
The test at a glance
- Collect your sample entirely at home
- Liquid capillary blood from a fingertip
- Quantitative laboratory values
- Medical laboratory accredited to ISO 15189
- Quality assurance in accordance with Rili-BÄK
- Digital results in your personal health portal
What is analysed?
Shrimp f24
Shrimp is a crustacean and the most common cause of shellfish allergy in adults.
Tropomyosin Pen a 1 f351
Tropomyosin is the protein responsible for most reactions to crustaceans. It explains why shrimp, crab and lobster often cause symptoms in the same person.
What does sensitisation mean?
Detectable specific IgE indicates sensitisation, but does not automatically mean that exposure causes clinical allergy symptoms. The result must always be considered alongside symptoms and actual exposure.
Common allergy symptoms and when the test may be relevant
The test may be relevant for symptoms after shellfish and for investigating possible reactions to additional crustaceans beyond those already known.
- itching or tingling in the mouth and throat
- hives, itching or eczema
- swelling of the lips or eyelids
- nausea, abdominal pain or diarrhoea
- vomiting shortly after a meal
Seek emergency medical care for difficulty breathing, swelling in the mouth or throat, dizziness or a suspected severe allergic reaction.
Who is the test for?
- People who react to shrimp, crab or lobster.
- People who want to investigate whether the reaction concerns crustaceans more generally.
- People who want to supplement a fish and shellfish test with component testing.
Why tropomyosin is included
Tropomyosin is the crustacean protein that most affected people react to. Because it is almost identical in shrimp, crab and lobster, a positive result can often explain symptoms with several types of shellfish. Fish is only analysed if you select a test that explicitly includes fish markers.
How the test works
- Order the test and receive the sampling kit at home.
- Read the instructions and complete any required preparation.
- Prick your fingertip and collect liquid capillary blood in the supplied sample tube.
- Label, package and send the sample to the laboratory.
- The laboratory analyses the included markers.
- View your digital laboratory report in your personal health portal.
Before collecting your sample
No special product-specific preparation is required according to the current product information. Always follow the instructions in the sampling kit.
Laboratory and quality
The sample is analysed at a medical laboratory accredited to ISO 15189. The laboratory's quality assurance also follows the Rili-BÄK guidelines for laboratory medical examinations.
- Sample material: liquid capillary blood
- Sampling location: at home
- Result: digital laboratory report
- Turnaround time: transport time and the scope of analysis affect the total time
Results and reference ranges
The report shows the analysed markers together with the laboratory's units and current reference ranges. Results should be interpreted in relation to age, sex, symptoms, medicines, lifestyle and medical history.
Important information about the result
A health test can identify abnormal laboratory values but does not provide a medical diagnosis or rule out disease. Contact a healthcare professional for clearly abnormal results, persistent symptoms or concerns.
Results and interpretation
The report provides the laboratory's findings for the included allergens. A positive result needs to be interpreted alongside symptoms and exposure and should not be used on its own to exclude foods or start treatment.
Frequently asked questions
Which allergens are included?
The analysis includes Shrimp f24, Tropomyosin Pen a 1 f351.
What is specific IgE?
These are IgE antibodies directed against a particular allergen.
Does a positive result mean I have an allergy?
Not automatically. The result indicates sensitisation and needs to be consistent with symptoms and exposure.
Can the test diagnose food intolerance?
No. IgE-mediated allergy and food intolerance are different conditions.
What should I do if the result is positive?
Discuss the result with a healthcare professional, particularly before making major dietary changes or if you have had severe reactions.
What is analysed
Fish and seafood
- Shrimp f24
Other
- Tropomyosin Pen a 1 f351
