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Pacific · Casein Allergy Test – Milk Allergy

Casein Allergy Test – Milk Allergy in California

Below is a plain-language overview of the casein allergy test – milk allergy. A casein allergy test uses a blood sample to check for IgE antibodies that may indicate an allergic response to casein, a major protein in cow's milk.

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 Casein Allergy Test – Milk Allergy 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
Fasting is required for this test — follow the collection lab's instructions.
Preparation
No special preparation is typically required for this blood test, but you should follow the specific instructions provided by the collection lab. This may include avoiding certain…
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 specific IgE antibodies in the blood that target casein, a protein that makes up about 80 percent of the proteins in cow's milk. It is used to help evaluate whether a person has a milk allergy, which is different from lactose intolerance.

What it measures

  • Casein-specific IgE — Reflects the level of allergic antibodies directed against casein protein.
  • Total IgE — Sometimes measured to provide context for allergic tendency, though not always included.
  • Milk protein components — May include other milk proteins like alpha-lactalbumin or beta-lactoglobulin if a broader panel is ordered.

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 a person has symptoms such as hives, digestive upset, or breathing problems after consuming milk or dairy products. It can help determine whether those symptoms are related to an immune response to casein.

Preparation

No special preparation is typically required for this blood test, but you should follow the specific instructions provided by the collection lab. This may include avoiding certain medications or fasting, depending on the lab's protocol.

How results are reported

Results are reported as a level of specific IgE antibodies, often categorized from negative to high positive, along with a reference range. Reference ranges vary by laboratory, so your results should be interpreted in the context of the lab's own ranges and your clinical history.

Before you go

  • Whether any medications you take could affect the test results.
  • If fasting or other preparation is required before the blood draw.
  • How and when you will receive your test results.

Cities

Casein Allergy Test – Milk Allergy in California communities

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

Los Angeles12,121,244Casein Allergy Test – Milk AllergySan Francisco3,290,197Casein Allergy Test – Milk AllergySan Diego3,084,174Casein Allergy Test – Milk AllergyRiverside2,022,285Casein Allergy Test – Milk AllergySacramento1,924,167Casein Allergy Test – Milk AllergySan Jose1,729,879Casein Allergy Test – Milk AllergyFresno719,558Casein Allergy Test – Milk AllergyConcord640,270Casein Allergy Test – Milk AllergyBakersfield590,845Casein Allergy Test – Milk AllergyMission Viejo588,540Casein Allergy Test – Milk AllergyMurrieta509,526Casein Allergy Test – Milk AllergyLong Beach466,565Casein Allergy Test – Milk AllergyOakland437,548Casein Allergy Test – Milk AllergyStockton406,822Casein Allergy Test – Milk AllergyVictorville389,060Casein Allergy Test – Milk AllergyModesto382,994Casein Allergy Test – Milk AllergyLancaster381,732Casein Allergy Test – Milk AllergyOxnard366,330Casein Allergy Test – Milk AllergyIndio361,831Casein Allergy Test – Milk AllergyAnaheim348,204Casein Allergy Test – Milk AllergyAntioch322,796Casein Allergy Test – Milk AllergySanta Rosa314,196Casein Allergy Test – Milk AllergySanta Ana313,818Casein Allergy Test – Milk AllergyIrvine297,868Casein Allergy Test – Milk AllergySanta Clarita275,230Casein Allergy Test – Milk AllergyChula Vista274,818Casein Allergy Test – Milk AllergyVisalia249,804Casein Allergy Test – Milk AllergyFremont231,502Casein Allergy Test – Milk AllergySan Bernardino220,821Casein Allergy Test – Milk AllergyThousand Oaks211,045Casein Allergy Test – Milk AllergyMoreno Valley208,371Casein Allergy Test – Milk AllergyFontana208,087Casein Allergy Test – Milk AllergySalinas199,290Casein Allergy Test – Milk AllergyHuntington Beach198,735Casein Allergy Test – Milk AllergySanta Barbara198,240Casein Allergy Test – Milk AllergyGlendale196,512Casein Allergy Test – Milk AllergyHemet191,170Casein Allergy Test – Milk AllergyVallejo181,882Casein Allergy Test – Milk AllergyElk Grove175,510Casein Allergy Test – Milk AllergyOntario175,223Casein Allergy Test – Milk AllergyOceanside174,461Casein Allergy Test – Milk AllergyRancho Cucamonga173,946Casein Allergy Test – Milk AllergyGarden Grove172,708Casein Allergy Test – Milk AllergyPalmdale167,987Casein Allergy Test – Milk AllergySanta Cruz165,933Casein Allergy Test – Milk AllergyHayward162,254Casein Allergy Test – Milk AllergyCorona157,844Casein Allergy Test – Milk AllergyMerced157,617Casein Allergy Test – Milk AllergySunnyvale155,550Casein Allergy Test – Milk AllergyPomona151,592Casein Allergy Test – Milk AllergyEscondido151,443Casein Allergy Test – Milk AllergyTorrance147,156Casein Allergy Test – Milk AllergyRoseville145,687Casein Allergy Test – Milk AllergyFairfield145,163Casein Allergy Test – Milk AllergyFullerton142,964Casein Allergy Test – Milk AllergySanta Maria142,230Casein Allergy Test – Milk AllergyOrange139,195Casein Allergy Test – Milk AllergyPasadena138,771Casein Allergy Test – Milk AllergyYuba City129,536Casein Allergy Test – Milk AllergySanta Clara127,922Casein Allergy Test – Milk Allergy