LabInformationLab tests, explained

Apolipoprotein B Test, (Apo-B) in California

Below is a plain-language overview of the apolipoprotein b test, (apo-b). The apolipoprotein B (Apo-B) test measures the amount of a protein that carries cholesterol and other fats in your blood. It is ordered to estimate heart disease risk, especially when standard cholesterol tests may not give a full picture. Across California, part of Pacific, the apolipoprotein b test, (apo-b) can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
Lipid & Cholesterol
Turnaround
1-3 business days
Price
$118
Referral
Not required

The apolipoprotein B (Apo-B) test measures the amount of a protein that carries cholesterol and other fats in your blood. It is ordered to estimate heart disease risk, especially when standard cholesterol tests may not give a full picture.

What it measures

  • Apolipoprotein B (Apo-B) — The main protein on LDL and other particles that can clog arteries.
  • LDL cholesterol — Often reported alongside Apo-B to show 'bad' cholesterol level.
  • Non-HDL cholesterol — All cholesterol not carried by HDL, the 'good' cholesterol.
  • Triglycerides — Another type of blood fat that can raise heart risk.

Who it is for

A clinician may order an Apo-B test if you have a personal or family history of early heart disease, diabetes, or high cholesterol that is hard to control. It is also used to monitor treatment for high cholesterol.

Preparation

Fasting is often not required, but your clinician may ask you to fast for 9 to 12 hours if other tests are done at the same time. Always follow the instructions you are given.

Results and what they mean

Results are reported as a number in milligrams per deciliter (mg/dL). Your clinician interprets this number along with your other risk factors; a higher level generally means higher risk. This is general information, not medical advice.

Requesting the Apolipoprotein B Test, (Apo-B) in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Pacific is uneven, so confirming a site ahead of time is worthwhile.

Frequently asked questions

How is the Apo-B test done?

It is a simple blood draw, usually from a vein in your arm, and takes only a few minutes.

Does Apo-B replace a standard cholesterol test?

No. It is often used together with a standard lipid panel to give a more complete risk picture.

What can affect my Apo-B level?

Diet, exercise, weight, genetics, and some medicines can affect it. Your clinician will consider these factors.

When will I get my results?

Results are typically available in 1 to 3 business days.

Apolipoprotein B Test, (Apo-B) by city in California

All testing in California →   Full Apolipoprotein B Test, (Apo-B) guide →