Lp(a) (Lipoprotein(a)) Blood Test
Lp(a) is a largely genetic, independent cardiovascular risk factor that most people are never tested for — and a single reading usually tells you for life.
What Lp(a) measures
Lp(a) is an LDL-like particle with an extra protein, apolipoprotein(a), attached to it. Your level is roughly 80–90% determined by genetics and stays fairly stable across your lifetime, so unlike standard cholesterol it isn't meaningfully moved by diet or exercise. Elevated Lp(a) is associated with increased cardiovascular risk independent of your LDL.
Who should consider checking Lp(a)
Have you noticed any of these:
- family history of early heart attack or stroke, especially without an obvious cause
- heart disease or high cholesterol that seems out of proportion to your lifestyle
- wanting to know a number you'll generally only need to check once
- building a complete cardiovascular baseline
- heard about lipoprotein(a) and want to know yours
How the test works
Single blood draw, often bundled with a fasted lipid panel. Because Lp(a) is largely genetically set, a single lifetime measurement is usually enough for most people. Results back in 24 hours.
What "normal" can look like
Lp(a) is reported in nmol/L (or sometimes mg/dL). Lower is generally considered better, and many labs flag higher risk above roughly 125 nmol/L (~50 mg/dL), though thresholds vary. Because the level is largely fixed for life, the value is in knowing your baseline once and factoring it into your overall risk picture with your doctor.
Where to get a Lp(a) test
Lp(a) is included in these panels:
- Lipoprotein(a) Test — Lp(a) is the genetic heart-risk marker a standard cholesterol test never checks. Largely fixed for life — most people only ever need to measure it once. A$119
Frequently asked questions
Do I need to test Lp(a) more than once?
Usually not. It's largely genetic and stable across your lifetime, so a single reading is typically enough unless your doctor advises rechecking.
Can diet or exercise lower Lp(a)?
Lifestyle has limited effect because Lp(a) is mostly genetically determined. That's exactly why knowing your number matters — it helps you and your doctor plan around a fixed part of your risk.
Should I fast?
Fasting isn't strictly required for Lp(a) itself, but it's often run with a fasted lipid panel.
Related biomarkers
Guides
- Beyond Cholesterol: The Heart Markers Modern Medicine Probably Isn't Testing For (2026) — A standard cholesterol test covers four numbers. Markers like ApoB, lipoprotein(a), homocysteine and hs-CRP give a fuller picture of cardiovascular risk — and most people have never had them measured.
- How Much Does a Private Blood Test Cost in Australia? A Buyer's Guide (2026) — Private blood tests in Australia range from $35 for single biomarkers up to $500+ for comprehensive panels. What you're paying for, what drives the cost, and when private testing is worth it.