Allergy Tests

📅 Last Updated: May 2026  |  🩺 Medically Reviewed by: Edward Salko, D.O., Medical Director  |  🧪 Lab Partner: Labcorp

One in three adults in the US has an allergy. If you frequently struggle with sneezing, itching, or bloating, an allergy blood test is a reliable way to uncover your triggers. Our comprehensive allergy blood test panels are designed to provide clear insights into your sensitivities and give you a path toward relief.

An allergy blood test not only helps ease symptoms but also prevents severe complications like anaphylactic shock. While allergy symptoms often look similar, allergens vary widely. Our allergen profiles are categorized by triggers, making it easier for your healthcare provider to establish a proper diagnosis and recommend treatment.

You can order online allergy tests and visit one of our over 4,000 affiliated locations nationwide for convenient allergy testing near you.

What are Allergies?

Allergies occur when the immune system overreacts to substances called allergens. During exposure, the body produces antibodies such as immunoglobulin E (IgE), which trigger the release of histamine and other chemicals that cause symptoms. Common allergens include:

• Environmental: Dust mites, pet dander, pollen, mold

• Food: Milk, eggs, peanuts, shellfish, wheat

• Medications: Penicillin, aspirin, chemotherapy drugs

• Insect stings: Bees, wasps, hornets

The widespread occurrence of allergies has rapidly increased in recent decades. Allergies are now the 6th leading cause of chronic illness in the US, with annual costs exceeding $18 billion. Common allergic conditions include:

• Hay fever – Affects up to 10% of adults and 40% of children

• Asthma – Affects over 25 million Americans

• Eczema – Affects over 30 million Americans

• Food allergies – Affect over 32 million Americans

• Anaphylaxis – Causes 500–1,000 deaths annually

What Is The Role of Allergy Testing

An allergy blood test identifies the exact source of your reactions, whether from environmental allergens like dust and pollen, or from foods, medications, and chemicals. By pinpointing your triggers, you gain control over your health with tailored strategies to avoid or treat them effectively.

What Are The Types of Allergy Blood Tests

We offer a comprehensive line of blood work allergy tests based on various types of allergens. These include:

• Food allergy testing can pinpoint common possible allergens, including milk, grains, shellfish, meat, fruit, nuts, vegetables, and fish. 
• Environmental allergy tests cover seasonal allergies caused by pollens, dust, and molds. These also include cat hair, grass, dog dander, and fire ants.
• State-specific allergy tests include tests for common allergens found in different states. For example, if you live in Kansas, check out the Allergen Profile for KS, ND, NE, SD Blood Test.  

Book a blood test without waiting for a doctor’s appointment and complete the allergy blood test near you at one of our partner labs. 

Who Should Get Tested for Allergies?

Anyone experiencing recurring allergy symptoms should consider an allergy blood test. Those with a family history of allergies or who already live with allergic conditions can benefit from identifying additional triggers.

Symptoms that may indicate the need for an allergy blood test include:

• Skin redness, swelling, rashes, or hives

• Runny nose or sneezing

• Stomach pain or bloating

• Vomiting or diarrhea

• Coughing or difficulty breathing

With over 100 million Americans experiencing allergies each year, an allergy blood test is more important than ever for accurate detection and management.

When To Do Allergy Testing

It’s best to schedule an allergy blood test as soon as you notice symptoms. Untreated allergies can worsen and lead to serious consequences. Anaphylaxis, in particular, requires immediate diagnosis and intervention. Having access to an allergy blood test near you ensures quick detection, safer treatment, and prevention of severe complications.

Understanding Allergy Test Results

Interpreting test results is essential for proper treatment. Allergists evaluate:

IgE antibody levels in kU/L units – Values above 0.35 kU/L typically indicate an allergy. Higher levels often correlate with more severe reactions.

Severity classification (Grades 1–6):

• Grades 1–2: Mild, usually managed by avoidance

• Grades 3–4: Moderate, often requiring medication

• Grades 5–6: Severe, requiring emergency treatment

Combined with your clinical history, these results guide the best treatment options.

Get Tested for Allergies Near You Today!

The life-saving impact of allergy tests makes it worth every cent. With our simple, streamlined ordering process, you can get to the root of your allergies and optimize your health. Get allergy testing near you today. 

Frequently Asked Questions

What is the difference between a food allergy test and a food sensitivity test? A food allergy test measures IgE antibodies — the immune response associated with true allergic reactions that can cause hives, swelling, or anaphylaxis. A food sensitivity test measures IgG antibodies, associated with delayed reactions like bloating, fatigue, or skin issues. Both are available through Personalabs.

How accurate are blood allergy tests? Blood allergy tests (IgE) are highly accurate for identifying true IgE-mediated allergies and are the preferred testing method for people who cannot undergo skin prick testing. Sensitivity is approximately 85–95% for most common allergens.

Can a blood test detect all allergies? Blood tests can detect IgE-mediated allergies to hundreds of specific foods and environmental allergens. However, they do not cover all possible triggers — some reactions are non-IgE mediated and may require different testing approaches.

Do I need a doctor’s order for allergy testing? No. Personalabs includes a physician-approved lab order with every purchase. No referral, doctor visit, or insurance required. Results in 24–48 hours through Labcorp.