Pacific · Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster
Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster in California
Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster can be ordered without a referral from your own doctor, and this guide covers what to expect. This blood test checks for IgE antibodies to four common shellfish: crab, shrimp, clam, and lobster. It is used with your symptom history to help evaluate possible shellfish allergy.
Lab requirements in California
Here is what you need before ordering and completing the Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster 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
- Preparation is generally minimal, but specific instructions can vary by collection site. Follow the lab's instructions about medications, fasting, or timing before your appointment.
- 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
The Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster is a panel of allergen-specific IgE blood tests. It measures immune proteins associated with allergic sensitivity to these shellfish. Elevated results can support a suspected allergy, but they do not by themselves diagnose a condition.
What it measures
- Shrimp-specific IgE — reflects immune sensitivity to shrimp proteins
- Crab-specific IgE — reflects immune sensitivity to crab proteins
- Lobster-specific IgE — reflects immune sensitivity to lobster proteins
- Clam-specific IgE — reflects immune sensitivity to clam proteins
What the test involves
A healthcare professional collects a small blood sample, usually from a vein in your arm. The sample is sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this panel when someone reports symptoms after eating shellfish or when an allergy is being evaluated. It can help clarify which shellfish may be relevant to a person's symptoms.
Preparation
Preparation is generally minimal, but specific instructions can vary by collection site. Follow the lab's instructions about medications, fasting, or timing before your appointment.
How results are reported
Results are typically reported as allergen-specific IgE levels or qualitative class categories for each shellfish. Reference ranges and reporting formats vary by laboratory, so your clinician interprets the findings alongside your symptoms and history.
Before you go
- Any preparation steps specific to the collection site
- Which medications or health conditions to mention before the draw
- How and when results will be shared
Cities
Shellfish Allergy Test - Crab, Shrimp, Clam, Lobster in California communities
Choose your city for local context and to order this test.