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Heart Health

Apolipoprotein B Test

The protein on every atherogenic lipoprotein particle. A direct count of plaque-forming particles.

Physician reviewed
Results in 1–3 days
4,000+ lab locations

What is Apolipoprotein B?

The protein on every atherogenic lipoprotein particle. A direct count of plaque-forming particles.

Apolipoprotein B Reference Range

These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.

PopulationRange
age 18+0.000 – 90.0 mg/dL

Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.

What your Apolipoprotein B result may mean

Higher than range

Above 90 mg/dL is associated with increased cardiovascular risk; above 130 mg/dL is high.

Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.

Related Heart Health biomarkers

Markers commonly tested alongside Apolipoprotein B.

Frequently asked

No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.

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