
Crayfish (rf320) IgE
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
Crayfish (rf320) IgE - This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
- Crayfish (rf320) IgE
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
Crayfish (rf320) IgE
This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
What patients is this test right for?
This test is suitable for individuals who suspect they may have an allergy to crayfish, especially if they have experienced symptoms of an allergic reaction after eating crayfish or being in contact with it.
Symptoms of Crayfish Allergy:
- Itching or hives
- Swelling of the lips, face, tongue, and throat or other parts of the body
- Wheezing, nasal congestion or trouble breathing
- Abdominal pain, diarrhea, nausea or vomiting
- Dizziness, lightheadedness or fainting
What type of sample is required for this test?
0.3 mL serum.
Test Resources
For more information on allergy testing and management, consult your healthcare provider or visit reputable health websites.
2–5 business days
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
Specimen
- Preferred Specimen(s): 0.3 mL serum
- Alternative: NA
- Minimum Volume: 0.15 mL
- Collection Instructions: NA
Storage and shipping instructions
- Transport Container: Serum separator tube (SST)
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 14 days
- Refrigerated: 14 days
- Frozen: 30 days
- Reject Criteria: NA
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island




