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Mid-Atlantic · Walnut Allergy Test – Nut Allergies

Walnut Allergy Test – Nut Allergies in Maryland

Walnut Allergy Test – Nut Allergies is a laboratory test you can request directly. A walnut allergy test measures the level of IgE antibodies your immune system makes in response to walnut proteins. It is used along with your history to help evaluate a possible walnut allergy.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Maryland

Here is what you need before ordering and completing the Walnut Allergy Test – Nut Allergies in MD. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
Preparation
In most cases no special preparation is needed, but you should follow the instructions provided by the collection site. If you take medications, ask the lab or your clinician whether any…
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI, including MD. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

This is a blood test that looks for specific IgE antibodies directed against walnut proteins. The presence of these antibodies suggests the immune system has been sensitized to walnuts, but it does not by itself prove that a clinical allergy exists. Clinicians interpret the result together with symptoms and other findings.

What it measures

  • Walnut-specific IgE antibody — Reflects immune sensitization to walnut proteins.
  • Total IgE (if included) — Shows the overall level of IgE antibodies in the blood.
  • Other nut-specific IgE (if a panel is ordered) — Helps check for reactions to related tree nuts.

What the test involves

A healthcare professional collects a small blood sample from a vein in your arm using a standard blood draw. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order this test when a person reports symptoms such as hives, swelling, stomach upset, or breathing trouble after eating walnuts or foods that may contain them. It is also sometimes used to help assess whether a known nut allergy is still present.

Preparation

In most cases no special preparation is needed, but you should follow the instructions provided by the collection site. If you take medications, ask the lab or your clinician whether any changes are needed before the draw.

How results are reported

Results are typically reported as a numeric level of walnut-specific IgE, often with a qualitative category such as negative, low, moderate, or high. Reference ranges and reporting formats vary by laboratory, so results should always be interpreted using the range provided by the performing lab.

Before you go

  • Whether any medications you take could affect the test
  • The exact turnaround time for results at your chosen lab
  • Whether a referral or order from a clinician is required

Cities

Walnut Allergy Test – Nut Allergies in Maryland communities

Choose your city for local context and to order this test.

Baltimore2,205,092Walnut Allergy Test – Nut AllergiesBel Air South222,834Walnut Allergy Test – Nut AllergiesHagerstown194,602Walnut Allergy Test – Nut AllergiesFrederick175,032Walnut Allergy Test – Nut AllergiesWaldorf119,442Walnut Allergy Test – Nut AllergiesSalisbury108,982Walnut Allergy Test – Nut AllergiesColumbia105,086Walnut Allergy Test – Nut AllergiesGermantown90,235Walnut Allergy Test – Nut AllergiesSilver Spring82,472Walnut Allergy Test – Nut AllergiesEllicott City74,432Walnut Allergy Test – Nut AllergiesEldersburg70,639Walnut Allergy Test – Nut AllergiesGlen Burnie69,739Walnut Allergy Test – Nut AllergiesGaithersburg68,827Walnut Allergy Test – Nut AllergiesRockville67,095Walnut Allergy Test – Nut AllergiesDundalk66,426Walnut Allergy Test – Nut AllergiesBethesda66,294Walnut Allergy Test – Nut AllergiesTowson59,014Walnut Allergy Test – Nut AllergiesBowie58,113Walnut Allergy Test – Nut AllergiesSevern53,955Walnut Allergy Test – Nut AllergiesAspen Hill53,850Walnut Allergy Test – Nut AllergiesWheaton51,836Walnut Allergy Test – Nut AllergiesNorth Bethesda50,695Walnut Allergy Test – Nut AllergiesPotomac46,891Walnut Allergy Test – Nut AllergiesOdenton43,488Walnut Allergy Test – Nut AllergiesCatonsville42,789Walnut Allergy Test – Nut AllergiesWoodlawn42,053Walnut Allergy Test – Nut AllergiesEssex40,710Walnut Allergy Test – Nut AllergiesAnnapolis40,581Walnut Allergy Test – Nut AllergiesClinton39,925Walnut Allergy Test – Nut AllergiesSeverna Park39,108Walnut Allergy Test – Nut AllergiesChillum36,428Walnut Allergy Test – Nut AllergiesOlney35,815Walnut Allergy Test – Nut AllergiesRandallstown35,641Walnut Allergy Test – Nut AllergiesOwings Mills35,170Walnut Allergy Test – Nut AllergiesCollege Park34,961Walnut Allergy Test – Nut AllergiesMontgomery Village34,489Walnut Allergy Test – Nut AllergiesPikesville33,549Walnut Allergy Test – Nut AllergiesPasadena31,583Walnut Allergy Test – Nut AllergiesBel Air North30,969Walnut Allergy Test – Nut AllergiesParkville30,783Walnut Allergy Test – Nut AllergiesMilford Mill30,685Walnut Allergy Test – Nut AllergiesMiddle River30,606Walnut Allergy Test – Nut AllergiesCarney29,873Walnut Allergy Test – Nut AllergiesCrofton29,812Walnut Allergy Test – Nut AllergiesLaurel29,438Walnut Allergy Test – Nut AllergiesPerry Hall29,165Walnut Allergy Test – Nut AllergiesSouth Laurel27,998Walnut Allergy Test – Nut AllergiesReisterstown27,917Walnut Allergy Test – Nut AllergiesIlchester27,513Walnut Allergy Test – Nut AllergiesClarksburg27,354Walnut Allergy Test – Nut AllergiesLochearn26,995Walnut Allergy Test – Nut AllergiesSuitland26,375Walnut Allergy Test – Nut AllergiesFort Washington25,840Walnut Allergy Test – Nut AllergiesFairland25,324Walnut Allergy Test – Nut AllergiesArnold25,056Walnut Allergy Test – Nut AllergiesEdgewood25,004Walnut Allergy Test – Nut AllergiesGreenbelt24,602Walnut Allergy Test – Nut AllergiesLandover24,508Walnut Allergy Test – Nut AllergiesNorth Potomac24,449Walnut Allergy Test – Nut AllergiesNorth Laurel24,233Walnut Allergy Test – Nut Allergies