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Quest Diagnostics

Hackberry (rt44) IgE

Quest Diagnostics

Sample type: Serum

Requires fasting: No

Phlebotomy required


Details

Hackberry (rt44) IgE - This test measures the IgE antibodies specific to the Hackberry (Rt44) allergen in the blood. It is used primarily to diagnose and assess allergic reactions to hackberry pollen. Elevated levels of Hackberry-specific IgE indicate a sensitization and potential allergic response to this particular tree pollen, which is useful in guiding allergy management and treatment plans.


  • Allergen Specific IgE Hackberry

Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected

Hackberry (rt44) IgE
This test measures the IgE antibodies specific to the Hackberry (Rt44) allergen in the blood. It is used primarily to diagnose and assess allergic reactions to hackberry pollen. Elevated levels of Hackberry-specific IgE indicate a sensitization and potential allergic response to this particular tree pollen, which is useful in guiding allergy management and treatment plans.

What patients is this test right for?
This test is suitable for individuals who exhibit symptoms of allergic reactions such as sneezing, runny nose, itchy eyes, or asthma during the pollination season of hackberry trees and require confirmation of sensitization especially during times when hackberry trees are pollinating.

What type of sample is required for this test?
0.3 mL serum.
Serum separator tube (SST). 

Test Resources
For more information, please consult your healthcare provider.


2–5 business days


  • Allergies and sensitivities

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

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