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Apolipoprotein B (ApoB)

Quick answer

What is Apolipoprotein B (ApoB)?

ApoB counts the number of atherogenic particles in the blood — every LDL, VLDL, and Lp(a) carries one ApoB. Mechanistically the most accurate single lipid read for cardiovascular risk.

Units:
g/L
Reference range:
<1.0 g/L (general); <0.8 g/L (high CV risk)
Sample:
Venous blood (serum)
Category
Lipids
Units
g/L
Reference range
<1.0 g/L (general); <0.8 g/L (high CV risk)

What does a high Apolipoprotein B result mean?

Familial hypercholesterolaemia, insulin resistance, hypothyroidism, ageing. Strongly predictive of cardiovascular events.

What does a low Apolipoprotein B result mean?

Often genetic; sometimes malabsorption.

Why does Apolipoprotein B matter?

ApoB beats LDL-C in current evidence. Most standard panels don't include it; FORM does.

References

  1. [1]2018 AHA/ACC Guideline on the Management of Blood CholesterolPubMed / Circulation
  2. [2]Clinical Methods: The History, Physical, and Laboratory ExaminationsNCBI Bookshelf

Want Apolipoprotein B interpreted in the context of your full panel? Every FORM bloodwork tier covers it, with an MD walking you through the result.

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