Apolipoprotein B
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
Apolipoprotein B (APO B) Test - This test measures the level of Apolipoprotein B (APO B) in your blood, which is a strong indicator of coronary artery disease (CAD). It's particularly useful because APO B levels can be elevated even when LDL cholesterol levels are normal, helping to identify risk in patients who might otherwise be considered low-risk based on cholesterol alone.
- Apolipoprotein B
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
This test measures the level of Apolipoprotein B (APO B) in your blood, which is a strong indicator of coronary artery disease (CAD). It's particularly useful because APO B levels can be elevated even when LDL cholesterol levels are normal, helping to identify risk in patients who might otherwise be considered low-risk based on cholesterol alone.
3–5 business days
Optimal <90 mg/dL
Moderate 90-129 mg/dL
High ≥130 mg/dL
A desirable treatment target may be <80 mg/dL or lower depending on the risk category of the patient, including patients on lipid-lowering therapies, patients with ASCVD, diabetes with >1 risk factor, Stage 3 or greater CKD with albuminuria, or heterozygous familial hypercholesterolemia. ApoB relative risk category cut points are based on AACE/ACE and ACC/AHA recommendations (Grundy SM, et al. 2019. doi:10.1016/j.jacc.2018.11.002; Handelsman Y, et al. 2020. doi:10.4158/CS-2020-0490).
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 serum
- 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: 7 days
- Frozen: 30 days
- Reject Criteria:
- Grossly lipemic
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
