Phosphatidylserine/Prothrombin (PS/PT) Antibody (IgM)
Quest Diagnostics
Sample type: Plasma
Requires fasting: No
Phlebotomy required
Details
Phosphatidylserine/Prothrombin (PS/PT) Antibody (IgM) - This test measures IgM antibodies directed against a phosphatidylserine/prothrombin complex (PS/PT). These antibodies have been reported to have a high association with venous thrombosis and obstetric abnormalities, but not with arterial thrombosis. In addition, a very high degree of concordance between the concentration of aPS/PT and lupus anticoagulant activity has been demonstrated.
- Phosphatidylserine/ Prothrombin Antibody (IgM)
Estimated days for results: Results should be available within 2 - 5 business days after samples are received at the lab.
Phosphatidylserine/Prothrombin (PS/PT) Antibody (IgM) - Antiphospholipid Syndrome (APS) is an acquired autoimmune thrombophilia characterized by thrombosis (venous and/or arterial or microvascular) and/or pregnancy loss or morbidity in association with persistent positivity of a heterogenous group of autoantibodies known as anti-phospholipid antibodies (APL). The international laboratory consensus criteria for the diagnosis of APS includes a positive lupus anticoagulant and/or moderate to high positivity for IgG/IgM Cardiolipin and Beta-2-Glycoprotein I antibodies. Although not included in the criteria classification for APS diagnosis, antibodies directed against a phosphatidylserine/prothrombin complex (PS/PT) have been reported to have a high association with venous thrombosis and obstetric abnormalities, but not with arterial thrombosis. In addition, a very high degree of concordance between the concentration of aPS/PT and lupus anticoagulant activity has been demonstrated.
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
- Preferred Specimen(s): 1 mL platelet-poor plasma collected in a sodium citrate (light blue-top) tube
- Alternative: NA
- Minimum Volume: 0.5 mL
- Collection Instructions: NA
- Transport Container: Transport tube
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 7 days
- Refrigerated: 30 days
- Frozen: 30 days
- Reject Criteria:
- Gross hemolysis • Grossly lipemic
State restrictions:
Patient can't order this test if they are located in Puerto Rico, Hawaii, Rhode Island, New Jersey, or New York
