Allergy - Onion (Piaz), ImmunoCAP

Onions are a staple in many cuisines, known for their distinctive flavor and versatility in dishes worldwide. Packed with nutrients like vitamin C, fiber, and antioxidants, onions offer various health benefits. However, some individuals can have allergic reactions to onions, causing stomach problems, skin rashes, or more serious reactions. The Allergy - Onion (Piaz), ImmunoCAP test helps diagnose an onion allergy by checking for specific antibodies (IgE) that the body makes against proteins present in onions. 

The Allergy - Onion (Piaz), ImmunoCAP test is recommended when individuals experience symptoms such as itching, swelling, or discomfort in the mouth or throat, skin rashes, nausea, stomach cramps, or diarrhea after eating raw or cooked onions. It can help distinguish onion allergies from other conditions like oral allergy syndrome (OAS), a type of food allergy that causes allergic reactions in the lips, mouth, and throat upon eating certain raw fruits and vegetables. 

A positive test result for onion-specific IgE antibodies means there is an ongoing onion allergy, and avoiding onions is usually recommended to prevent reactions. If the result is negative, more tests may be needed to find other causes for the symptoms, such as food sensitivities that don’t involve IgE antibodies.

No special preparation is required for the Allergy - Onion (Piaz), ImmunoCAP. Inform the doctor about any medications (such as antihistamines) or supplements being taken, as they might influence the test results.

Lab test results can vary depending on the specific test kit used, as different methods and the quality of allergens used can affect the quantification of IgE. Therefore, these results are intended to be interpreted in conjunction with clinical symptoms.