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Pacific · Lettuce Allergy Test – Food Allergies

Lettuce Allergy Test – Food Allergies in California

Lettuce Allergy Test – Food Allergies is a laboratory test you can request directly. A lettuce allergy test checks for allergic antibodies to lettuce proteins in a blood sample. It helps explain reactions that may occur after eating lettuce or foods containing it.

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

Lab requirements in California

Here is what you need before ordering and completing the Lettuce Allergy Test – Food Allergies in CA. 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
No special preparation is usually required, but follow the collection lab's instructions. If you take medications, ask the lab or your clinician whether any need to be adjusted before the…
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 test measures immunoglobulin E (IgE) antibodies that your immune system may produce in response to lettuce proteins. It is used to evaluate whether a lettuce allergy is possible when symptoms occur after exposure. The test does not diagnose an allergy by itself; it is interpreted alongside your history and other findings.

What it measures

  • Lettuce-specific IgE antibody — reflects immune sensitivity to lettuce proteins
  • Total IgE (if included) — shows the overall level of allergic antibodies in the blood
  • Other food-specific IgE antibodies (if a panel is ordered) — helps identify reactions to related or additional foods

What the test involves

A healthcare professional collects a small blood sample, usually 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 if you have had symptoms such as hives, itching, swelling, stomach upset, or breathing trouble after eating lettuce or foods that contain it. It can also be part of a broader evaluation for food-related allergic reactions.

Preparation

No special preparation is usually required, but follow the collection lab's instructions. If you take medications, ask the lab or your clinician whether any need to be adjusted before the draw.

How results are reported

Results are reported as a numeric level or a qualitative category, depending on the laboratory's method. Reference ranges and cutoffs vary by laboratory, so your result must be interpreted using the range provided by the testing lab.

Before you go

  • Whether any medications you take could affect the test
  • How and when you will receive your results
  • Whether a follow-up visit is needed to discuss the findings

Cities

Lettuce Allergy Test – Food Allergies in California communities

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

Los Angeles12,121,244Lettuce Allergy Test – Food AllergiesSan Francisco3,290,197Lettuce Allergy Test – Food AllergiesSan Diego3,084,174Lettuce Allergy Test – Food AllergiesRiverside2,022,285Lettuce Allergy Test – Food AllergiesSacramento1,924,167Lettuce Allergy Test – Food AllergiesSan Jose1,729,879Lettuce Allergy Test – Food AllergiesFresno719,558Lettuce Allergy Test – Food AllergiesConcord640,270Lettuce Allergy Test – Food AllergiesBakersfield590,845Lettuce Allergy Test – Food AllergiesMission Viejo588,540Lettuce Allergy Test – Food AllergiesMurrieta509,526Lettuce Allergy Test – Food AllergiesLong Beach466,565Lettuce Allergy Test – Food AllergiesOakland437,548Lettuce Allergy Test – Food AllergiesStockton406,822Lettuce Allergy Test – Food AllergiesVictorville389,060Lettuce Allergy Test – Food AllergiesModesto382,994Lettuce Allergy Test – Food AllergiesLancaster381,732Lettuce Allergy Test – Food AllergiesOxnard366,330Lettuce Allergy Test – Food AllergiesIndio361,831Lettuce Allergy Test – Food AllergiesAnaheim348,204Lettuce Allergy Test – Food AllergiesAntioch322,796Lettuce Allergy Test – Food AllergiesSanta Rosa314,196Lettuce Allergy Test – Food AllergiesSanta Ana313,818Lettuce Allergy Test – Food AllergiesIrvine297,868Lettuce Allergy Test – Food AllergiesSanta Clarita275,230Lettuce Allergy Test – Food AllergiesChula Vista274,818Lettuce Allergy Test – Food AllergiesVisalia249,804Lettuce Allergy Test – Food AllergiesFremont231,502Lettuce Allergy Test – Food AllergiesSan Bernardino220,821Lettuce Allergy Test – Food AllergiesThousand Oaks211,045Lettuce Allergy Test – Food AllergiesMoreno Valley208,371Lettuce Allergy Test – Food AllergiesFontana208,087Lettuce Allergy Test – Food AllergiesSalinas199,290Lettuce Allergy Test – Food AllergiesHuntington Beach198,735Lettuce Allergy Test – Food AllergiesSanta Barbara198,240Lettuce Allergy Test – Food AllergiesGlendale196,512Lettuce Allergy Test – Food AllergiesHemet191,170Lettuce Allergy Test – Food AllergiesVallejo181,882Lettuce Allergy Test – Food AllergiesElk Grove175,510Lettuce Allergy Test – Food AllergiesOntario175,223Lettuce Allergy Test – Food AllergiesOceanside174,461Lettuce Allergy Test – Food AllergiesRancho Cucamonga173,946Lettuce Allergy Test – Food AllergiesGarden Grove172,708Lettuce Allergy Test – Food AllergiesPalmdale167,987Lettuce Allergy Test – Food AllergiesSanta Cruz165,933Lettuce Allergy Test – Food AllergiesHayward162,254Lettuce Allergy Test – Food AllergiesCorona157,844Lettuce Allergy Test – Food AllergiesMerced157,617Lettuce Allergy Test – Food AllergiesSunnyvale155,550Lettuce Allergy Test – Food AllergiesPomona151,592Lettuce Allergy Test – Food AllergiesEscondido151,443Lettuce Allergy Test – Food AllergiesTorrance147,156Lettuce Allergy Test – Food AllergiesRoseville145,687Lettuce Allergy Test – Food AllergiesFairfield145,163Lettuce Allergy Test – Food AllergiesFullerton142,964Lettuce Allergy Test – Food AllergiesSanta Maria142,230Lettuce Allergy Test – Food AllergiesOrange139,195Lettuce Allergy Test – Food AllergiesPasadena138,771Lettuce Allergy Test – Food AllergiesYuba City129,536Lettuce Allergy Test – Food AllergiesSanta Clara127,922Lettuce Allergy Test – Food Allergies