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Southwest · Walnut Allergy Test – Nut Allergies

Walnut Allergy Test – Nut Allergies in Arizona

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 Arizona

Here is what you need before ordering and completing the Walnut Allergy Test – Nut Allergies in AZ. 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. 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 Arizona communities

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

Phoenix4,047,095Walnut Allergy Test – Nut AllergiesTucson875,284Walnut Allergy Test – Nut AllergiesMesa497,752Walnut Allergy Test – Nut AllergiesChandler272,439Walnut Allergy Test – Nut AllergiesGilbert262,249Walnut Allergy Test – Nut AllergiesAvondale254,537Walnut Allergy Test – Nut AllergiesGlendale245,685Walnut Allergy Test – Nut AllergiesScottsdale238,685Walnut Allergy Test – Nut AllergiesPeoria187,733Walnut Allergy Test – Nut AllergiesTempe178,862Walnut Allergy Test – Nut AllergiesSurprise141,875Walnut Allergy Test – Nut AllergiesYuma135,933Walnut Allergy Test – Nut AllergiesPrescott Valley97,901Walnut Allergy Test – Nut AllergiesSan Tan Valley96,127Walnut Allergy Test – Nut AllergiesGoodyear93,651Walnut Allergy Test – Nut AllergiesBuckeye89,711Walnut Allergy Test – Nut AllergiesFlagstaff81,682Walnut Allergy Test – Nut AllergiesCasas Adobes70,224Walnut Allergy Test – Nut AllergiesQueen Creek57,728Walnut Allergy Test – Nut AllergiesMaricopa57,075Walnut Allergy Test – Nut AllergiesLake Havasu City56,510Walnut Allergy Test – Nut AllergiesCasa Grande53,488Walnut Allergy Test – Nut AllergiesMarana50,834Walnut Allergy Test – Nut AllergiesCatalina Foothills50,096Walnut Allergy Test – Nut AllergiesOro Valley46,515Walnut Allergy Test – Nut AllergiesPrescott45,063Walnut Allergy Test – Nut AllergiesSierra Vista44,944Walnut Allergy Test – Nut AllergiesBullhead City41,064Walnut Allergy Test – Nut AllergiesApache Junction38,311Walnut Allergy Test – Nut AllergiesSun City37,693Walnut Allergy Test – Nut AllergiesEl Mirage35,410Walnut Allergy Test – Nut AllergiesSan Luis35,289Walnut Allergy Test – Nut AllergiesSahuarita33,524Walnut Allergy Test – Nut AllergiesKingman32,204Walnut Allergy Test – Nut AllergiesDrexel Heights30,599Walnut Allergy Test – Nut AllergiesFortuna Foothills26,727Walnut Allergy Test – Nut AllergiesSun City West26,354Walnut Allergy Test – Nut AllergiesFlorence25,356Walnut Allergy Test – Nut AllergiesFountain Hills23,639Walnut Allergy Test – Nut AllergiesAnthem22,750Walnut Allergy Test – Nut AllergiesRio Rico20,914Walnut Allergy Test – Nut AllergiesGreen Valley20,729Walnut Allergy Test – Nut AllergiesNogales19,829Walnut Allergy Test – Nut AllergiesNew River17,731Walnut Allergy Test – Nut AllergiesFlowing Wells16,965Walnut Allergy Test – Nut AllergiesDouglas16,470Walnut Allergy Test – Nut AllergiesPayson16,229Walnut Allergy Test – Nut AllergiesFort Mohave15,872Walnut Allergy Test – Nut AllergiesEloy15,171Walnut Allergy Test – Nut AllergiesTanque Verde14,946Walnut Allergy Test – Nut AllergiesSierra Vista Southeast14,822Walnut Allergy Test – Nut AllergiesVail14,715Walnut Allergy Test – Nut AllergiesSomerton14,126Walnut Allergy Test – Nut AllergiesSun Lakes13,912Walnut Allergy Test – Nut AllergiesCoolidge13,347Walnut Allergy Test – Nut AllergiesValencia West12,887Walnut Allergy Test – Nut AllergiesNew Kingman-Butler12,858Walnut Allergy Test – Nut AllergiesChino Valley12,854Walnut Allergy Test – Nut AllergiesParadise Valley12,666Walnut Allergy Test – Nut AllergiesVerde Village12,658Walnut Allergy Test – Nut Allergies