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Quest Diagnostics

Perennial Rye Grass (g5) IgE

Quest Diagnostics

Sample type: Serum

Requires fasting: No

Phlebotomy required


Details

This test quantifies an individual’s IgE response to perennial rye grass. It is an in vitro quantitative assay, which is intended to be used in conjunction with other clinical information to aid in the diagnosis of allergic diseases.


  • Perennial rye grass (g5) ige

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

Perennial Rye Grass (g5) IgE
This test measures the IgE response to perennial rye grass, helping in the diagnosis of allergic diseases. It's a quantitative assay that should be used alongside other clinical information for a comprehensive diagnosis. Allergen-specific serum IgE testing, recognized by leading allergy and immunology academies, is often preferred due to certain conditions that may affect skin testing results or pose risks.

When is this test recommended?
This test may be recommended in situations where skin testing for allergies is not suitable, such as:
  • Widespread skin disease
  • Recent use of antihistamines or medications affecting skin test results
  • Uncooperative patients
  • High risk of severe allergic reaction from skin testing

Important Note:
A definitive allergy diagnosis should not rely solely on this test. A trained healthcare professional should consider all clinical and laboratory findings.

What type of sample is required for this test?
0.3 mL serum.

Test Resources:
Reference:
Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(suppl 3):S1-S148.


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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