This test is useful when a ragweed pollen allergy is suspected and to identify the specific molecule that has previously caused a positive result in the associated allergen extract test.
Amb a 1 is a pectate lyase protein found in ragweed pollen.
The average prevalence of this molecule can exceed 90% in patients sensitised to ragweed pollen.
Cross-reactivity is possible with other pollens such as mugwort and sunflower.
Symptoms associated with an allergy to this molecule mainly include allergic rhinitis, conjunctivitis, and coughing caused an itchy throat; in some cases, the allergy may also cause skin symptoms and lead to bronchial asthma.
The assessment of sensitisations to Amb a 1 is considered important for selecting patients eligible for allergen-specific immunotherapy (AIT).
Serum
ChLIA
Fasting for at least 8-12 hours before sampling
Refer to the Health Service Charter to check storage conditions
+2/+8°C
This test provides the quantitative determination of total tau protein to support the diagnosis of Alzheimer’s disease.
This test provides the quantitative determination of tau protein phosphorylated at threonine 181 (pTau181), to support the diagnosis of Alzheimer’s disease.
Test for the determination of human autoantibodies against NMDAR to support the diagnosis of paraneoplastic neurological syndromes with an intermediate-risk phenotype.
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