What it measures
Lipoprotein(a), or Lp(a), is a particle similar to LDL with an extra protein attached. Its level is largely set by genes and stays much the same through life, so one test is usually enough.
Why people test it
- Checked when there is a personal or family history of heart disease at a young age.
- Checked in close relatives of people with a raised level, and in people with familial hypercholesterolaemia.
- Used alongside cholesterol results to add to a heart risk estimate.
Typical range
Ranges vary between labs, with the method used, age and sex, and your report shows the lab's own range, in nmol/L or mg/dL (the two do not convert simply). HEART UK groups results by risk, from minor (32 to 90 nmol/L) to very high (above 400 nmol/L). Source: HEART UK: what is high lipoprotein(a)?.
Finger-prick or vein?
A finger-prick sample is usually fine for cholesterol tests, and some kits include Lp(a). A vein draw works too and is used when it is part of a larger panel.