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Territories · Catfish Allergy Test – Fish Allergy

Catfish Allergy Test – Fish Allergy in Puerto Rico

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 Puerto Rico

Here is what you need before ordering and completing the Catfish Allergy Test – Fish Allergy in PR. 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 Puerto Rico communities

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

San Juan1,915,105Catfish Allergy Test – Fish AllergyAguadilla260,331Catfish Allergy Test – Fish AllergyBayamón170,028Catfish Allergy Test – Fish AllergyCarolina139,735Catfish Allergy Test – Fish AllergyPonce124,719Catfish Allergy Test – Fish AllergyArecibo123,499Catfish Allergy Test – Fish AllergySan Germán103,747Catfish Allergy Test – Fish AllergyMayagüez93,426Catfish Allergy Test – Fish AllergyYauco80,307Catfish Allergy Test – Fish AllergyFajardo75,549Catfish Allergy Test – Fish AllergyCaguas74,502Catfish Allergy Test – Fish AllergyJuana Díaz71,759Catfish Allergy Test – Fish AllergyGuaynabo70,542Catfish Allergy Test – Fish AllergyFlorida69,427Catfish Allergy Test – Fish AllergyGuayama65,343Catfish Allergy Test – Fish AllergyTrujillo Alto44,203Catfish Allergy Test – Fish AllergyCataño23,536Catfish Allergy Test – Fish AllergyVega Baja23,527Catfish Allergy Test – Fish AllergyHumacao17,607Catfish Allergy Test – Fish AllergyCandelaria15,498Catfish Allergy Test – Fish AllergyCayey14,052Catfish Allergy Test – Fish AllergyDorado13,008Catfish Allergy Test – Fish AllergyRío Grande12,216Catfish Allergy Test – Fish AllergyCanóvanas12,211Catfish Allergy Test – Fish AllergyManatí12,207Catfish Allergy Test – Fish AllergyCaño Martin Peña12,112Catfish Allergy Test – Fish AllergyHormigueros11,358Catfish Allergy Test – Fish AllergySabana Grande11,128Catfish Allergy Test – Fish AllergyCoamo10,508Catfish Allergy Test – Fish AllergyIsabela10,457Catfish Allergy Test – Fish AllergyCabo Rojo10,011Catfish Allergy Test – Fish AllergyCorozal9,986Catfish Allergy Test – Fish AllergyPájaros9,713Catfish Allergy Test – Fish AllergyVega Alta9,457Catfish Allergy Test – Fish AllergySan Lorenzo8,628Catfish Allergy Test – Fish AllergySan Sebastián8,568Catfish Allergy Test – Fish AllergyAibonito8,532Catfish Allergy Test – Fish AllergyArroyo8,438Catfish Allergy Test – Fish AllergyJuncos8,174Catfish Allergy Test – Fish AllergyLuquillo7,898Catfish Allergy Test – Fish AllergySan Isidro7,613Catfish Allergy Test – Fish AllergyUtuado7,336Catfish Allergy Test – Fish AllergySabana Seca7,330Catfish Allergy Test – Fish AllergySan Antonio7,311Catfish Allergy Test – Fish AllergyPuerto Real6,966Catfish Allergy Test – Fish AllergyGurabo6,882Catfish Allergy Test – Fish AllergyYabucoa6,466Catfish Allergy Test – Fish AllergyCidra6,139Catfish Allergy Test – Fish AllergyGuánica6,042Catfish Allergy Test – Fish AllergyCeiba5,876Catfish Allergy Test – Fish AllergyLas Piedras5,785Catfish Allergy Test – Fish AllergyQuebradillas5,528Catfish Allergy Test – Fish AllergyPeñuelas5,497Catfish Allergy Test – Fish AllergyNaguabo5,487Catfish Allergy Test – Fish AllergyLajas5,453Catfish Allergy Test – Fish AllergySanta Isabel5,433Catfish Allergy Test – Fish AllergyLares5,203Catfish Allergy Test – Fish AllergyAñasco5,042Catfish Allergy Test – Fish AllergyCoco4,942Catfish Allergy Test – Fish AllergySalinas4,771Catfish Allergy Test – Fish Allergy