Food Specific IgG Allergy (Adult) Panel

Quest Diagnostics

Sample type: Serum

Requires fasting: No

Phlebotomy required

Details

Food Specific IgG Allergy (Adult) Panel - IgE-assays are the best-studied and most accepted serologic tests for evaluating food allergy status. However, some clinicians also use IgG tests when evaluating individuals for food allergies, sensitivities, or tolerance. Food-specific IgG is generally believed to be a normal physiological response to food exposures. Quest offer IgG food tests to support providers who use them in their evaluation of patients experiencing adverse reactions to foods.

Biomarker summary

Cacao (Chocolate) (f93) IgG
Casein (f78) IgG
Codfish (f3) IgG
Coffee (f221) IgG
Egg white (f1) IgG
Maize/Corn (f8) IgG
Peanut (f13) IgG
Soybean (f14) IgG
Tomato (f25) IgG
Wheat (f4) IgG
Yeast (f45) IgG

Additional details

Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected

Details

Food Specific IgG Allergy (Adult) Panel - IgE-assays are the best-studied and most accepted serologic tests for evaluating food allergy status. However, some clinicians also use IgG tests when evaluating individuals for food allergies, sensitivities, or tolerance. Food-specific IgG is generally believed to be a normal physiological response to food exposures. Therefore, many professional organizations, including the American Academy of Allergy, Asthma & Immunology, the Canadian Society of Allergy and Clinical Immunology, and the European Academy of Allergy and Clinical Immunology, recommend against using IgG testing to diagnose food allergies or food intolerances/sensitivities [1-3].

Quest offers IgG food tests to support providers who use them in their evaluation of patients experiencing adverse reactions to foods.

References:
1. AAAAI. https://www.aaaai.org/conditions-and-treatments/library/allergy-library/IgG-food-test. Accessed November 5, 2019.
2. Carr S, et al. Allergy Asthma Immunol. 2010;8:12.3. Stapel SO, et al. Allergy. 2008;63:793-769.

What type of sample is required for this test?

3.5 mL serum

Test Resources

For more information, please consult your healthcare provider.

Average sample processing time

2–5 business days

Health categories

Allergies and sensitivities

Patient instructions

Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:

Quest Diagnostics Patient Service Centers (PSC)

Location: Visit a nearby Quest Diagnostics Patient Service Center.
Cost: $10 sample collection fee (paid during lab order checkout).
Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
Collection Instructions:

Bring a valid ID.
Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.

Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
More Info: Quest Diagnostics blood draw guide

Getlabs Mobile Phlebotomy

Location: Sample collection at your home or office.
Cost: $85 sample collection fee (paid during lab order checkout).
Availability: Available in most locations – enter your ZIP code during checkout to confirm.
Scheduling: Schedule your appointment here through your Fullscript account.
Collection Instructions: