
Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA)
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
Saccharomyces cerevisiae Antibodies (ASCA) (IgG, IgA) - Antibodies to Saccharomyces cerevisiae are found in approximately 75% of patients with Crohn's disease, 15% of patients with ulcerative colitis, and 5% of the healthy population. High titers of antibody increase the likelihood of disease, specifically Crohn's disease, and are associated with more aggressive disease.
- Saccharomyces Cerevisiae Ab (ASCA) (IgG)
- Saccharomyces Cerevisiae Ab (ASCA) (IgA)
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
2–5 business days
Value Interpretation
≤20.0 U Negative
20.1–29.9 U Equivocal
≥30.0 U Positive
Saccharomyces cerevisiae Ab (ASCA) (IgA)
Value Interpretation
≤20.0 U Negative
20.1–24.9 U Equivocal
≥25.0 U Positive
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
- Preferred Specimen(s): 2 mL serum
- Alternative: NA
- Minimum Volume: 0.6 mL
- Collection Instructions: NA
- Transport Container: ACD (yellow-top) tube; Transport tube
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 21 days
- Reject Criteria:
- Gross hemolysis • Lipemia
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island




