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Pacific · Willow Tree Allergy Test – Tree Pollen

Willow Tree Allergy Test – Tree Pollen in California

Below is a plain-language overview of the willow tree allergy test – tree pollen. A Willow Tree Allergy Test measures IgE antibodies in your blood to help identify a sensitivity to willow tree pollen. It is used alongside your symptom history to support allergy evaluation.

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 Willow Tree Allergy Test – Tree Pollen 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
In general, no special preparation is needed for a blood draw, but follow the collection lab's instructions. If you take medications, ask the lab or your clinician whether any need to be…
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 detects specific IgE antibodies directed against willow tree pollen. The presence of these antibodies suggests your immune system may react to willow pollen, but it does not by itself confirm an allergy. Results are interpreted together with your symptoms and medical history.

What it measures

  • Willow tree pollen-specific IgE — Reflects the level of IgE antibodies your immune system produces against willow pollen.
  • Total IgE (if included) — May be reported alongside specific IgE to give context, though it is not specific to willow.

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 when you have seasonal or year-round symptoms that could be related to tree pollen, especially if willow trees are common in your environment. It can help clarify whether willow pollen is a likely trigger among other possible causes.

Preparation

In general, no special preparation is needed for a blood draw, but follow the collection lab's instructions. If you take medications, ask the lab or your clinician whether any need to be adjusted before testing.

How results are reported

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

Before you go

  • Whether any medications you take could affect the test
  • The lab's specific instructions for preparation and sample collection
  • How and when you will receive your results

Cities

Willow Tree Allergy Test – Tree Pollen in California communities

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

Los Angeles12,121,244Willow Tree Allergy Test – Tree PollenSan Francisco3,290,197Willow Tree Allergy Test – Tree PollenSan Diego3,084,174Willow Tree Allergy Test – Tree PollenRiverside2,022,285Willow Tree Allergy Test – Tree PollenSacramento1,924,167Willow Tree Allergy Test – Tree PollenSan Jose1,729,879Willow Tree Allergy Test – Tree PollenFresno719,558Willow Tree Allergy Test – Tree PollenConcord640,270Willow Tree Allergy Test – Tree PollenBakersfield590,845Willow Tree Allergy Test – Tree PollenMission Viejo588,540Willow Tree Allergy Test – Tree PollenMurrieta509,526Willow Tree Allergy Test – Tree PollenLong Beach466,565Willow Tree Allergy Test – Tree PollenOakland437,548Willow Tree Allergy Test – Tree PollenStockton406,822Willow Tree Allergy Test – Tree PollenVictorville389,060Willow Tree Allergy Test – Tree PollenModesto382,994Willow Tree Allergy Test – Tree PollenLancaster381,732Willow Tree Allergy Test – Tree PollenOxnard366,330Willow Tree Allergy Test – Tree PollenIndio361,831Willow Tree Allergy Test – Tree PollenAnaheim348,204Willow Tree Allergy Test – Tree PollenAntioch322,796Willow Tree Allergy Test – Tree PollenSanta Rosa314,196Willow Tree Allergy Test – Tree PollenSanta Ana313,818Willow Tree Allergy Test – Tree PollenIrvine297,868Willow Tree Allergy Test – Tree PollenSanta Clarita275,230Willow Tree Allergy Test – Tree PollenChula Vista274,818Willow Tree Allergy Test – Tree PollenVisalia249,804Willow Tree Allergy Test – Tree PollenFremont231,502Willow Tree Allergy Test – Tree PollenSan Bernardino220,821Willow Tree Allergy Test – Tree PollenThousand Oaks211,045Willow Tree Allergy Test – Tree PollenMoreno Valley208,371Willow Tree Allergy Test – Tree PollenFontana208,087Willow Tree Allergy Test – Tree PollenSalinas199,290Willow Tree Allergy Test – Tree PollenHuntington Beach198,735Willow Tree Allergy Test – Tree PollenSanta Barbara198,240Willow Tree Allergy Test – Tree PollenGlendale196,512Willow Tree Allergy Test – Tree PollenHemet191,170Willow Tree Allergy Test – Tree PollenVallejo181,882Willow Tree Allergy Test – Tree PollenElk Grove175,510Willow Tree Allergy Test – Tree PollenOntario175,223Willow Tree Allergy Test – Tree PollenOceanside174,461Willow Tree Allergy Test – Tree PollenRancho Cucamonga173,946Willow Tree Allergy Test – Tree PollenGarden Grove172,708Willow Tree Allergy Test – Tree PollenPalmdale167,987Willow Tree Allergy Test – Tree PollenSanta Cruz165,933Willow Tree Allergy Test – Tree PollenHayward162,254Willow Tree Allergy Test – Tree PollenCorona157,844Willow Tree Allergy Test – Tree PollenMerced157,617Willow Tree Allergy Test – Tree PollenSunnyvale155,550Willow Tree Allergy Test – Tree PollenPomona151,592Willow Tree Allergy Test – Tree PollenEscondido151,443Willow Tree Allergy Test – Tree PollenTorrance147,156Willow Tree Allergy Test – Tree PollenRoseville145,687Willow Tree Allergy Test – Tree PollenFairfield145,163Willow Tree Allergy Test – Tree PollenFullerton142,964Willow Tree Allergy Test – Tree PollenSanta Maria142,230Willow Tree Allergy Test – Tree PollenOrange139,195Willow Tree Allergy Test – Tree PollenPasadena138,771Willow Tree Allergy Test – Tree PollenYuba City129,536Willow Tree Allergy Test – Tree PollenSanta Clara127,922Willow Tree Allergy Test – Tree Pollen