In this article
Check it once. Is that still the whole story?
You had the blood test. Someone told you it only needed to be done once. You filed away the result and moved on.
Years later, you are going through menopause. Your periods have changed. Perhaps your cholesterol has too. Does that old test still tell your doctor what they need to know?
The test is called lipoprotein(a), or Lp(a). The 2026 U.S. cholesterol guideline recommends that adults have it at least once. It also recognizes that Lp(a) can change around menopause.
Sources: 1
First, what is Lp(a)?
Lp(a), pronounced L-P-little-a, is a tiny particle that carries cholesterol through your blood. It is similar to LDL, often called ‘bad cholesterol,’ but has an extra protein attached to it.
Too much Lp(a) can raise your chance of a heart attack or stroke. It can also contribute to calcium buildup in the aortic valve, the valve that lets blood leave your heart. Over time, that buildup can make the valve harder to open.
About one in five people has a high level. You usually cannot feel it. And your regular cholesterol test does not automatically include it. Lp(a) needs its own blood test.
Why were we told to test it only once?
Your level is mostly set by genes passed down from your parents. Eating differently, exercising, or losing weight usually does little to lower it. That is why one test can tell you something useful for years.
But genes are not the only influence. Pregnancy, menopause, chronic kidney disease, an underactive thyroid (hypothyroidism), liver disease and some medicines can affect the number too.
Sources: 1
Menopause may change the picture
You may already know that LDL cholesterol can rise around menopause. Lp(a) can change too.
A Danish study of more than 70,000 people found that women after menopause had Lp(a) levels about 27 percent higher than women who had not yet reached menopause. The researchers compared groups of women. They did not show that every woman’s number rises by that amount.
European heart-health experts have called attention to this. Their 2025 cholesterol guidance says a second test after menopause is reasonable, particularly if the earlier result was intermediate. The document calls this middle range ‘borderline.’
This gives some women a reason to ask about another test. It does not mean every woman needs to repeat Lp(a) at menopause or every year.
So should you repeat yours?
Your earlier result gives you a starting point. Your clinician, the health professional treating you, will also consider your age, blood pressure, other cholesterol results, medicines, and family history. A repeat test is not automatic at menopause.
- Clearly low: if your health has changed little, another test may add little.
- Intermediate: another test may help if it could change your care. This can be worth discussing after menopause or pregnancy, or with long-term kidney disease or an underactive thyroid.
- Clearly high: discuss your plan now. You do not need to wait for another result before asking what to do next.
What do the numbers mean?
Look at the letters beside your result. They tell you how the lab measured it. A result of ‘50’ means something different in mg/dL than it does in nmol/L.
The 2026 U.S. guideline uses these ranges:
- If your report says nmol/L: 125 or higher is considered high. A result from 75 to 124 falls between the low and high ranges.
- If your report says mg/dL: 50 or higher is considered high. A result from 30 to 49 falls between the low and high ranges.
- These ranges help guide care; they do not tell you whether you will have a heart attack.
- Keep the original report. There is no single exact formula for converting between these units. If two reports use different units, ask your clinician to compare them.
If your Lp(a) is high, what happens next?
A high result does not mean you are going to have a heart attack. It also cannot show whether you already have buildup inside an artery or a blockage.
It tells your clinician to pay closer attention to the things you can change, especially LDL cholesterol, blood pressure, blood sugar, and smoking.
You may not be able to lower your Lp(a) very much with lifestyle. You can still improve your overall heart health. Eating well, staying active, avoiding smoking, and treating high blood pressure or LDL cholesterol still matter, even when Lp(a) barely moves.
Ask what your result changes. Should you aim for a lower LDL cholesterol level? Would medicine help? When should you check in again? The answers should fit your health and history.
Are there medicines for Lp(a)?
As of September 18, 2026, no medicine is approved specifically to lower Lp(a) to prevent heart attacks and strokes. Several are being studied.
One recent result shows why those studies matter. On September 4, Novartis reported that a medicine called pelacarsen lowered Lp(a) in a large study. But it did not meet the study’s main goal of reducing serious heart and blood-vessel problems. The participants already had heart or blood-vessel disease. The company said more detailed results would follow.
A lower blood-test number does not always mean fewer heart attacks or strokes. Researchers are still studying other medicines, including olpasiran, to see whether they can do both.
You do not have to wait for those answers to work on your LDL cholesterol, blood pressure, or other parts of your heart health.
Should your family be checked too?
High Lp(a) often runs in families. Ask: “If my Lp(a) is high, should my parents, siblings or children be tested?”
This is especially worth discussing if relatives developed heart disease at a young age. For children, their clinician can help decide when testing makes sense.
Sometimes one woman’s blood test helps uncover a risk factor that has been moving quietly through a family for generations.
Sources: 1
What to bring to your next appointment
Find the original lab report, if you have one. Save the number, units, and date. Note whether it was before menopause and whether you were pregnant or taking hormone treatment when it was drawn.
Bring your recent cholesterol and blood-pressure results, current medications, and any family history of early heart disease. These details help your clinician decide whether the old Lp(a) result still answers today’s question.
If you have never had the test, ask about it at your next routine visit.
Your next step
Find the original result before repeating it
Bring the report with the value, units and test date. Note whether it was before or after menopause so your clinician can interpret the result in context. Keep the units exactly as reported.
Before you leave, confirm the next step, when it should happen, and who will follow up.
Free. No account needed. Use your notes with your care team.
Evidence behind the article
Sources and editorial review
Lp(a) testing sources checked:
Who contributed, and what they checked
Focused wording review: repeat testing
Harpreet S. Bhatia, MD, MAS
Harpreet S. Bhatia, MD, MAS, checked and agreed with the following wording about repeating an Lp(a) test after menopause:
“Lp(a) is largely inherited, and one measurement is often enough. If an earlier result was in an intermediate range, ask your clinician whether repeating it after menopause could change your risk assessment or prevention plan.”
His September 29 feedback applies to these two sentences. It is not a review of the full article, its medicine and trial updates, or other pages and tools.
The date and scope of each contribution are listed above. Medical source-check dates are recorded separately.
- 2026 Guideline on the Management of DyslipidemiaACC/AHA Multisociety Guideline · Circulation · 2026
- Lipoprotein(a)American Heart Association · Accessed September 18, 2026
- Sex differences of lipoprotein(a) levels and associated risk of morbidity and mortality by age: The Copenhagen General Population StudySimony and colleagues · Atherosclerosis · 2022
- Women, lipids, and atherosclerotic cardiovascular disease: EAS call to actionEuropean Atherosclerosis Society · 2023
- 2025 Focused Update of the 2019 ESC/EAS Guidelines for the management of dyslipidaemiasEuropean Society of Cardiology / European Atherosclerosis Society · 2025
- Lp(a)HORIZON Phase III topline results for pelacarsenNovartis · Company results announcement · September 4, 2026
- OCEAN(a)-Outcomes: Olpasiran cardiovascular outcomes trial (NCT05581303)ClinicalTrials.gov · Sponsor: Amgen · Record checked September 18, 2026
- Lipoprotein(a) Management Simplified: The National Lipid Association Lipid Simplified SeriesKoschinsky and Ballantyne · National Lipid Association · Resource posted September 25, 2026; checked September 30, 2026
September 30, 2026 update: added advice from the National Lipid Association about when another test may help. We also clarified ‘intermediate,’ meaning between low and high. This source check covered repeat testing. The medicine and study updates keep their own dates. Dr. Bhatia’s separate review of two sentences is described above; the full article has not received independent clinical review.
The Copenhagen study compared groups of women. Its 27 percent finding does not tell us how much one woman’s result will change. The number ranges here follow the 2026 U.S. guideline. Labs can use different methods and units to measure Lp(a).
The pelacarsen results came from the company making the medicine. The full study results will be needed to understand the finding more fully.
The contributions above apply only to the material and dates described. An editorial source check is separate from an independent clinical review. Sources and contributions do not imply endorsement of HEART RESERVE.
