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Midwest · Catfish Allergy Test – Fish Allergy

Catfish Allergy Test – Fish Allergy in Illinois

This page explains the catfish allergy test – fish allergy, what it measures, and how to order it. A catfish allergy test uses a blood sample to check for IgE antibodies that may indicate an allergy to catfish. It is one of several tests a clinician may use when evaluating a possible fish allergy.

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 Catfish Allergy Test – Fish 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
Preparation is generally minimal, but specific instructions can vary by laboratory. Follow the collection lab's instructions about medications, fasting, or timing before the draw.
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 the amount of allergen-specific IgE in the blood that reacts to catfish proteins. IgE is an antibody the immune system can produce in response to allergens, and its presence may support a diagnosis of catfish allergy when considered with a person's history and other findings. It is not used alone to diagnose an allergy.

What it measures

  • Catfish-specific IgE — Reflects the amount of IgE antibody in the blood that binds to catfish proteins
  • Total IgE (if included) — Reflects overall IgE level, which can be elevated in allergic conditions but is not specific to catfish
  • Other fish-specific IgE (if a panel is ordered) — Reflects sensitization to other fish species that may be relevant to dietary choices

What the test involves

A healthcare professional collects a small blood sample, usually from a vein in the 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 after eating catfish or other fish, such as hives, swelling, stomach upset, or breathing changes. It can also be used to help monitor known fish allergy over time, though it is interpreted alongside symptoms and other tests.

Preparation

Preparation is generally minimal, but specific instructions can vary by laboratory. Follow the collection lab's instructions about medications, fasting, or timing before the draw.

How results are reported

Results are reported as a numerical level of catfish-specific IgE, often with a qualitative interpretation such as negative, low, or elevated. Reference ranges and reporting formats differ by laboratory, so results should be interpreted in the context of the lab's own ranges and the person's clinical history.

Before you go

  • Whether any medications or foods should be avoided before the blood draw
  • How and when results will be shared with you and your clinician
  • Whether a panel of other fish allergens will be included in the same sample

Cities

Catfish Allergy Test – Fish Allergy in Illinois communities

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

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