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Midwest · Casein Allergy Test – Milk Allergy

Casein Allergy Test – Milk Allergy in Illinois

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 Illinois

Here is what you need before ordering and completing the Casein Allergy Test – Milk Allergy in IL. 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 Illinois communities

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

Chicago8,595,181Casein Allergy Test – Milk AllergyRockford289,763Casein Allergy Test – Milk AllergyRound Lake Beach287,012Casein Allergy Test – Milk AllergyPeoria255,718Casein Allergy Test – Milk AllergyAurora183,447Casein Allergy Test – Milk AllergySpringfield162,588Casein Allergy Test – Milk AllergyChampaign153,278Casein Allergy Test – Milk AllergyJoliet150,323Casein Allergy Test – Milk AllergyNaperville149,013Casein Allergy Test – Milk AllergyBloomington134,357Casein Allergy Test – Milk AllergyElgin114,156Casein Allergy Test – Milk AllergyWaukegan89,751Casein Allergy Test – Milk AllergyDecatur88,002Casein Allergy Test – Milk AllergyCicero84,905Casein Allergy Test – Milk AllergyAlton83,705Casein Allergy Test – Milk AllergyKankakee82,095Casein Allergy Test – Milk AllergyEvanston78,454Casein Allergy Test – Milk AllergySchaumburg78,053Casein Allergy Test – Milk AllergyArlington Heights77,283Casein Allergy Test – Milk AllergyBolingbrook73,807Casein Allergy Test – Milk AllergyPalatine67,754Casein Allergy Test – Milk AllergySkokie67,444Casein Allergy Test – Milk AllergyDeKalb66,624Casein Allergy Test – Milk AllergyCarbondale66,482Casein Allergy Test – Milk AllergyDes Plaines60,413Casein Allergy Test – Milk AllergyOrland Park58,622Casein Allergy Test – Milk AllergyOak Lawn58,032Casein Allergy Test – Milk AllergyBerwyn56,960Casein Allergy Test – Milk AllergyMount Prospect56,510Casein Allergy Test – Milk AllergyTinley Park55,988Casein Allergy Test – Milk AllergyOak Park54,100Casein Allergy Test – Milk AllergyWheaton53,762Casein Allergy Test – Milk AllergyNormal53,446Casein Allergy Test – Milk AllergyHoffman Estates52,153Casein Allergy Test – Milk AllergyDowners Grove50,209Casein Allergy Test – Milk AllergyGlenview48,150Casein Allergy Test – Milk AllergyElmhurst45,661Casein Allergy Test – Milk AllergyLombard44,311Casein Allergy Test – Milk AllergyPlainfield44,296Casein Allergy Test – Milk AllergyBuffalo Grove43,062Casein Allergy Test – Milk AllergyMoline42,660Casein Allergy Test – Milk AllergyBelleville42,463Casein Allergy Test – Milk AllergyBartlett41,126Casein Allergy Test – Milk AllergyRomeoville40,099Casein Allergy Test – Milk AllergyCrystal Lake40,082Casein Allergy Test – Milk AllergyCarol Stream39,895Casein Allergy Test – Milk AllergyStreamwood39,736Casein Allergy Test – Milk AllergyQuincy39,687Casein Allergy Test – Milk AllergyPark Ridge39,562Casein Allergy Test – Milk AllergyUrbana39,189Casein Allergy Test – Milk AllergyWheeling39,104Casein Allergy Test – Milk AllergyCarpentersville37,940Casein Allergy Test – Milk AllergyHanover Park37,545Casein Allergy Test – Milk AllergyRock Island37,519Casein Allergy Test – Milk AllergyCalumet City36,065Casein Allergy Test – Milk AllergyAddison35,999Casein Allergy Test – Milk AllergyNorthbrook35,108Casein Allergy Test – Milk AllergyOswego34,324Casein Allergy Test – Milk AllergyWoodridge34,161Casein Allergy Test – Milk AllergyGlendale Heights33,443Casein Allergy Test – Milk Allergy