What is lipoprotein(a) on a blood test?
Lipoprotein(a), written Lp(a), is an LDL particle with an extra protein wrapped around it.
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The short answer
Lipoprotein(a), written Lp(a), is an LDL particle with an extra protein wrapped around it. Your level is set almost entirely by genetics, it barely responds to diet or exercise, and a completely normal cholesterol result does not rule it out. It's a once-in-a-lifetime test. At Epicentre it's R495.
What does Lipoprotein(a) measure?
An Lp(a) particle looks like LDL with an addition: a protein called apolipoprotein(a) attached to it. That addition makes the particle both atherogenic, like LDL, and prothrombotic, meaning it also promotes clotting.
The number that matters is how much of it you have, and that's decided by the gene you inherited. It's largely settled by early childhood and stays roughly stable for the rest of your life, which is why one measurement is usually enough.
It also explains a pattern that puzzles people: someone with an unremarkable cholesterol panel and a strong family history of early heart attacks. Lp(a) doesn't show up on a standard lipogram, and standard cholesterol treatment barely touches it.
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Before reading much into either, remember how reference ranges work. They are built so that about 95% of healthy people fall inside them, so roughly 1 in 20 normal results sits outside by definition. The pattern across related markers matters far more than any single value.
What else affects Lipoprotein(a)?
- Genetics
- Almost everything. Lp(a) is one of the most strongly inherited markers in common use.
- Diet and exercise
- Very little, which is unusual and worth knowing before you attempt to change it. This is not a lifestyle marker.
- Inflammation and kidney disease
- Can raise it somewhat, so a very high result during acute illness is worth repeating once recovered.
- Your ancestry
- Average levels differ substantially between population groups, which affects how the result is interpreted.
The functional view
Lp(a) is the strongest argument on this whole site for testing something once even when you feel well.
It's inherited, it's common, it's invisible on a standard cholesterol panel, and it doesn't respond to the things people are usually told to do. Roughly 1 in 5 people carry a raised level, and most of them will never be told, because nobody looks unless someone asks.
Knowing doesn't give you a lever to pull directly. What it gives a doctor is a reason to be more aggressive about the risk factors that can be changed, and a reason to start earlier. That's a legitimate use of a test result, and it's why the once-in-a-lifetime framing makes sense here in a way it doesn't for most markers.
Where this marker sits in the bigger picture
Cellular transport
How things move around the bloodstream. Lp(a) is an LDL particle with an extra protein attached, and that attachment changes how it behaves.
Every blood order at Epicentre comes back with a functional health report at no extra cost, showing each marker against an optimal band as well as the standard range, ranked by what needs attention. Functional optimal ranges are educational reference recommendations rather than diagnostic thresholds, they are not universally agreed, and a value inside a standard laboratory range is not a disease. The standard report is still the one your doctor works from.
Which markers is it read with?
A lipogram R362 for the standard picture, and ApoB R332, which counts atherogenic particles. If there's a family history of early heart disease, the Cardio-Plus Screen at R1,430 covers the wider picture.
Which packages include Lipoprotein(a)?
Cheapest first.
Includes Lipoprotein(a).
See what's included →R10,945ODx Ultimate PackageIncludes Lipoprotein(a).
See what's included →Where can I test Lipoprotein(a) in South Africa?
All three open Monday to Friday, 08:30 to 16:00, closed on public holidays. Medical aid rates are roughly 20% higher than the cash rate and generally need a doctor's request with an ICD-10 code.
Basically
Lipoprotein(a) is R495 at Epicentre and you do not need a referral for it. It is a functional marker, which means a standard panel will not include it unless you ask. One result on its own rarely settles anything: what matters is the pattern with the markers it is read alongside, and what it has done since last time.
Frequently asked questions
What is a normal Lp(a) level?
Reference points differ between laboratories and between the two units in use, mass and molar, so read your result against the range printed with it. Broadly, higher levels are associated with higher cardiovascular risk, and the association is continuous rather than a threshold.
Can you lower lipoprotein(a)?
Not meaningfully through diet or exercise, which is what makes it unusual. Your level is set largely by genetics and stays fairly stable through life. Treatments that specifically target it are in development but not routine. What a raised result does is give your doctor a reason to manage everything else more assertively.
How often should Lp(a) be tested?
Usually once. It's genetically determined and stable, so unlike cholesterol there's little value in repeating it. The exception is a very high result taken during acute illness or kidney problems, which is worth confirming once recovered.
Why isn't Lp(a) on a standard cholesterol test?
Because a standard lipogram measures total cholesterol, LDL, HDL and triglycerides, and Lp(a) isn't one of them. It has to be requested separately, which is why plenty of people with a raised level and a normal-looking lipogram have never heard of it.
Other markers explained
This page is general health information and not a medical diagnosis. Epicentre Aids Risk Management (Pty) Ltd, practice number 1117394, provides diagnostic laboratory testing: we do not diagnose, prescribe or treat, and results are intended to inform a consultation with your doctor. Medically reviewed by Dr Samantha Naidoo, MB ChB, FCP (SA), Medical Director. Prices are 2026 cash rates including 15% VAT and can change without notice.