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Egg Yolk

Phadia’s F75 test is used to detect blood levels of the IgE (antibodies) responsible for allergic reactions to egg yolks. The interpretation chart accompanying the result expresses the probability of an allergic reaction to egg yolks, but not necessarily the severity of the reaction. Case history (age, symptoms, relation to meals, etc.) and clinical examination by the physician are essential for a reliable interpretation of the results.

An anti-egg yolk IgE result below 0.35 kilounits per litre (< 0.35 kU/L) indicates that egg yolks are probably not responsible for the symptoms observed, but it DOES NOT COMPLETELY RULE OUT THIS POSSIBILITY. The double-blind oral food challenge remains the definitive technique for confirming the presence or absence of a food allergy.

Term of the Week

Hot zone

A hot zone is a section of a facility (sometimes an entire facility or even a city district) where there is a high risk of contamination by patients with an infectious disease. All individuals entering a hot zone must respect appropriate protective measures. By analogy, “cold zone” and “warm zone” are used to refer to areas where there is no infected individual or only individuals suspected of having an infection.