Apolipoprotein B / ApoB
Detects: Atherogenic particle burden
What it is
A blood test that counts the actual number of cholesterol-carrying particles that can lodge in artery walls — sometimes a more precise risk marker than LDL alone.
Where & when it’s offered
At labs and clinics as part of an advanced lipid assessment.
Why it’s offered
ApoB can reveal risk that LDL misses, particularly with diabetes, high triglycerides, or metabolic syndrome.
When it’s routine
Used selectively to refine risk and guide therapy, often alongside or instead of a standard lipid panel when numbers are discordant.
ApoB — questions & answers
What does ApoB detect?
Atherogenic particle burden. A blood test that counts the actual number of cholesterol-carrying particles that can lodge in artery walls — sometimes a more precise risk marker than LDL alone.
Is the ApoB test noninvasive?
Yes — blood draw. At labs and clinics as part of an advanced lipid assessment.
When should you get ApoB screening?
Used selectively to refine risk and guide therapy, often alongside or instead of a standard lipid panel when numbers are discordant.
Does Medicare cover ApoB?
Coverage depends on indication. Confirm with your provider.
Want a reminder when this is due?
Join Kardia Guard free — we’ll tell you when ApoB fits your age and guidelines, and help you find a facility near you.