Biomarker Lens

Biomarkers · Chemical

Beta-lactoglobulin f77 IgE

What it measures

Also listed as
Beta-lactoglobulin (f77) IgE
Tests in the graph that measure it
6

A plain-language description with its source has not been added for this biomarker yet. What the laboratories say about the tests that measure it is below.

Tests that measure Beta-lactoglobulin f77 IgE

Food and Tree Nut Allergy Panel with Reflex to Components

Laboratory
Quest Diagnostics
Test code
36763
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

This panel tests for specific IgE antibodies to 17 foods (with an emphasis on tree nuts) that are commonly associated with allergies. If the IgE result for cow's milk, egg whites, peanuts, Brazil nuts, walnuts, cashew nuts, or hazelnuts is positive, the corresponding allergen component panel will be performed. Allergen-specific serum IgE testing is considered comparable to skin testing and may be preferred in some clinical situations. However, a positive test result only indicates that a patient is sensitized to the allergen of concern. Many IgE-sensitized individuals do not develop any symptoms when exposed to the allergen. A diagnosis of allergy should only be made by a trained medical provider after conducting a thorough clinical evaluation [1].More specific information about allergens included in this panel may be found on the Quest Diagnostics Test Directory.Reference1. Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(3 Suppl 3):S1-S148.

Quest Diagnostics test directory, test code 36763

Milk Component Panel

Laboratory
Quest Diagnostics
Test code
91403
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

For use in the identification and severity of which specific milk protein a patient is allergic. This knowledge enables the clinician and the patient to make the correct treatment and lifestyle choices to mitigate exposure and reaction risk.

Quest Diagnostics test directory, test code 91403

Childhood and Tree Nut Allergy Panel with Reflex to Components

Laboratory
Quest Diagnostics
Test code
36766
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

Up to 90 percent of children with asthma have underlying allergies that trigger their asthma.1,2 Many things like environmental and food elements can trigger allergic reactions in children. Specific IgE serological tests aid in the diagnosis of allergic disease. In this profile, when a whole allergen protein extract is found to be positive, the respective component panel, which uses individual recombinant or purified proteins, is automatically run. Component panels improve specificity, provide the clinician with more detailed information for assessing level of risk, and help target effective management.1. Allen-Ramey F, et al. J Am Board Fam Pract 2005;18(5):434-439.2. Host A, Halken S. Allergy 2000;55:600-608.

Quest Diagnostics test directory, test code 36766

Beta-Lactoglobulin f77 IgE

Laboratory
Quest Diagnostics
Test code
2852
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

This test is an allergen-specific IgE antibody test that quantifies an individual’s IgE response to beta-lactoglobulin. It is an in vitro quantitative assay, which is intended to be used in conjunction with other clinical information to aid in the diagnosis of food allergy [1]. While allergen-specific serum IgE testing is considered comparable to skin testing in many instances, both the American Academy of Allergy, Asthma, and Immunology and the American College of Allergy, Asthma, and Immunology recognize that allergen-specific serum IgE testing may be preferred in some clinical situations. These include 1) the presence of widespread skin disease, 2) the recent use of antihistamines or other medications that can affect the results of allergy skin tests, 3) uncooperative patients, and 4) medical history suggesting that allergen skin testing would pose a significant risk for a serious allergic reaction [1]. Food-specific IgE tests are extremely sensitive. However, a positive test result only indicates that a patient is IgE sensitized to the food of concern. Many IgE-sensitized patients do not develop any symptoms when this food is ingested. A diagnosis of food allergy should only be made by a trained medical provider, after conducting a thorough clinical evaluation [2,3]. While food-specific IgE test results may contribute to that evaluation, they cannot replace it. In this regard, detection of food-specific IgE in serum provides evidence of IgE sensitization, but a history of clinical reactivity to the food of concern, is required to make a diagnosis of IgE-mediated food allergy. Moreover, several forms of food hypersensitivity are not associated with the presence of food-specific IgE in serum. More specific information about this allergen can be found at http://www.phadia.com/en/Products/Allergy-testing-products/ImmunoCAP-Allergen-Information/Food-of-Animal-Origin/Allergen-Components/nBos-d-5--lactoglobulin-Milk/ References 1. Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(suppl 3):S1-S148. 2. Sampson HA, et al. J Allergy Clin Immunol. 2014;134(5):1016-1025. 3. Boyce JA, et al. J Allergy Clin Immunol. 2010;126(6 suppl):S1-S58.

Quest Diagnostics test directory, test code 2852

Childhood Allergy Food and Environmental Panel with Reflexes

Laboratory
Quest Diagnostics
Test code
91683
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

Up to 90 percent of children with asthma have underlying allergies that trigger their asthma.1,2 Many things like environmental and food elements can trigger allergic reactions in children. Specific IgE serological tests aid in the diagnosis of allergic disease. In this profile, when a whole allergen protein extract is found to be positive, the respective component panel, which uses individual recombinant or purified proteins, is automatically run. Component panels improve specificity, provide the clinician with more detailed information for assessing level of risk, and help target effective management.⁠⁠⁠⁠⁠⁠⁠1. Allen-Ramey F, et al. J Am Board Fam Pract 2005;18(5):434-439.2. Host A, Halken S. Allergy 2000;55:600-608.

Quest Diagnostics test directory, test code 91683

Food Allergy Profile with Reflexes

Laboratory
Quest Diagnostics
Test code
91682
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

This in vitro allergen-specific IgE panel is used to quantitatively measure an individual's IgE response to 15 different foods that are commonly associated with allergies. These foods include almond, cashew nut, codfish, cow's milk, egg white, hazelnut, peanut, salmon, scallop, sesame seed, shrimp, soybean, tuna, walnut, and wheat. If the IgE result for egg white, cow's milk, or peanut is abnormal, the corresponding allergen component panel will be performed. This IgE panel is intended to be used in conjunction with other clinical information to aid in the diagnosis of food allergies [1].While allergen-specific serum IgE testing is considered comparable to skin testing in many instances, both the American Academy of Allergy, Asthma, and Immunology and the American College of Allergy, Asthma, and Immunology recognize that allergen-specific serum IgE testing may be preferred in some clinical situations. These include (1) the presence of widespread skin disease, (2) the recent use of antihistamines or other medications that can affect the results of allergy skin tests, (3) uncooperative patients, and (4) medical history suggesting that allergen skin testing would pose a significant risk for a serious allergic reaction [1].Food-specific IgE tests are extremely sensitive. However, a positive test result only indicates that a patient is IgE-sensitized to the food of concern. Many IgE-sensitized individuals do not develop any symptoms when the food is ingested. A diagnosis of food allergy should only be made by a trained medical provider after conducting a thorough clinical evaluation [2,3]. While food-specific IgE test results may contribute to that evaluation, they cannot replace it. Moreover, several forms of food hypersensitivity are not associated with the presence of food-specific IgE in serum.The results of this panel should be interpreted in the context of pertinent clinical and family history and physical examination findings. More specific information about each allergen included in this panel may be found on the Quest Diagnostics Test Directory.⁠⁠⁠⁠⁠⁠⁠References1. Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(3 Suppl 3)S1-S148.2. Sampson HA, et al. J Allergy Clin Immunol. 2014;134(5):1016-1025.3. NIAID-Sponsored Expert Panel, Boyce JA, et al. J Allergy Clin Immunol. 2010;126(6 Suppl):S1-S58.

Quest Diagnostics test directory, test code 91682

About this page

Everything above is drawn from the named sources and shown as they published it. Reference ranges belong to the laboratory that issued them and the population it named; they are not a universal normal. This page describes the biomarker in general and does not interpret anyone's result. For your own numbers, talk to a clinician, or use Aumnivida, which reads the same graph next to your records.

Found an error? Write to hello@biomarkerlens.com with the page link and the source that contradicts it.