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Apolipoprotein A1 + B Blood Test

Cholesterol & Blood Pressure

Seeking more precise cardiovascular risk assessment beyond standard cholesterol testing, especially if you have diabetes, metabolic syndrome, or family history of heart disease?

Check your heart risk with the Apolipoprotein A1 + B Test. ApoA1 is linked with good cholesterol, while ApoB is linked with bad cholesterol. This test may help give a clearer picture of heart and metabolic health than cholesterol alone.

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So how does it work?

Bloody Good is a single portal for ordering, tracking, and reviewing on-demand health testing. Get started with three simple steps:

1
Book your test

Book your test

Choose the testing that suits your goals. After ordering, you will receive your referral by email.

2
Collect your samples

Collect your samples

Have your sample collected at one of our 4000+ partner collection centres.

3
View your results

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View your lab results and receive a personalised review from the secure Bloody Good platform.

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Overview

Check your heart risk with the Apolipoprotein A1 + B Test. ApoA1 is linked with good cholesterol, while ApoB is linked with bad cholesterol. This test may help give a clearer picture of heart and metabolic health than cholesterol alone.

Think of apolipoproteins as your body's specialized delivery trucks that transport cholesterol through your bloodstream, giving doctors a much clearer picture of your heart health than standard cholesterol tests can provide. Apolipoprotein A1 (ApoA1) is like the captain of your cleanup crew – it's the main protein that powers HDL or "good" cholesterol as it patrols your arteries, picking up harmful cholesterol deposits and hauling them back to your liver for disposal. Meanwhile, Apolipoprotein B (ApoB) is found in all the troublesome cholesterol particles, including LDL "bad" cholesterol and other types that can stick to artery walls and create dangerous blockages.

What makes this test so valuable is that it actually counts how many cholesterol-carrying particles you have, not just how much cholesterol is floating around. You could have seemingly normal cholesterol numbers but still be at risk if you have too many harmful delivery trucks (high ApoB) or not enough of the cleanup crew (low ApoA1). The ratio between these two gives your doctor a precise snapshot of whether your cardiovascular system is properly balanced, making this test especially helpful for people with diabetes, metabolic issues, or those whose regular cholesterol tests look fine despite having heart disease symptoms or a family history of cardiovascular problems.

Reviewed by Dr. Vu Tran
Bloody Good’s Chief Medical Officer

You may benefit from the Apolipoprotein A1 + B Blood Test

Essential for individuals with diabetes, metabolic syndrome, or strong family history of cardiovascular disease. Important for people with normal cholesterol levels but other risk factors. Valuable for monitoring advanced lipid-lowering therapies and assessing cardiovascular risk in complex cases where traditional lipid panels may be insufficient.

Family history of heart attack before age 50 High cholesterol despite healthy diet Cardiovascular risk assessment

How to prepare

Fasting for 9-12 hours recommended for most accurate results, though less critical than for triglycerides. Avoid alcohol for 24 hours before testing. Maintain usual medications unless specifically advised otherwise by your healthcare provider. Stay well-hydrated and avoid intense exercise before testing.

Understanding results

Normal ranges: ApoA1: 1.2-2.4 g/L (men), 1.3-2.6 g/L (women); ApoB: 0.5-1.2 g/L; ApoB/ApoA1 ratio: <0.9 (optimal), 0.9-1.2 (moderate risk), >1.2 (high risk). Low ApoA1 or high ApoB indicates increased cardiovascular risk. The ratio provides the most clinically relevant risk assessment, with lower ratios indicating better cardiovascular protection.

After the test

Discuss results with your healthcare provider to determine appropriate cardiovascular risk management strategies. Abnormal results may require lifestyle modifications, advanced lipid-lowering therapies, or more intensive cardiovascular monitoring. Consider additional cardiac risk assessments and regular follow-up testing to monitor treatment effectiveness.

Frequently Asked Questions

  • Standard tests measure cholesterol content, while apolipoprotein testing counts the actual number of cholesterol-carrying particles. You can have normal cholesterol levels but still have too many harmful particles (high ApoB) indicating increased risk.
  • A high ratio indicates an imbalance between harmful and protective cholesterol particles, suggesting increased cardiovascular risk even when total cholesterol appears normal. It's considered one of the most accurate predictors of heart disease risk.
  • Yes, this test can identify cardiovascular risk in people with normal cholesterol levels by detecting particle number imbalances that standard lipid panels might miss, particularly in diabetes and metabolic syndrome.
  • Lifestyle changes including regular exercise, Mediterranean-style diet, weight management, and avoiding trans fats can improve the ApoB/ApoA1 ratio. Some people may need advanced lipid-lowering medications.
  • This test can be valuable for people on statins to ensure optimal cardiovascular protection and guide treatment adjustments, especially if you have diabetes or multiple risk factors.
  • Typically every 1-2 years for monitoring, or more frequently if you have high cardiovascular risk, diabetes, or are adjusting treatment. Your doctor will recommend appropriate timing based on your risk profile.

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Frequently Asked Questions

Find answers to common questions about our products and services.

Most collection centres accept walk-ins. Some may require a booking - check details when you click on your chosen location.

If your test needs fasting, we’ll include that in your instructions after you order. Fasting usually means no food for 8–12 hours, but water is fine.

Just your pathology referral form (we email it to you)

Of course. Just maybe don’t bring the friend who faints at the sight of blood.

They’re the highly trained professionals who take your blood sample - with a steady hand and a sharp needle. They love blood, but don’t worry… they’re not vampires. Just legends who make blood tests quick, clean, and (almost) painless.

Some of our tests include Urine, Stool, Saliva and more. Each test will have a clear description on what sample you will need to give and instructions on how.

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