{"id":"lipoprotein-a-molar","name":"Lipoprotein(a), molar (nmol/L)","shortName":"Lp(a) molar","aliases":["Lipoprotein (a)","Lp(a)","Lipoprotein(a) nmol/L","Lp(a) nmol/L","Lp(a), Molar","Lp(a) Particle Concentration","Lipoprotein (a) (Lp(a))","Lp(a) Particle","Lp(a) (isoform-insensitive)","Lipoprotein(a), S","Lp(a) Molar","Lipoprotein (a), Molar","Lipoprotein (a) nmol/L","Lipoprotein(a) (nmol/L)"],"abbreviations":["Lp(a)","Lp-a"],"loinc":[{"code":"43583-4","primary":true}],"specimen":"serum-or-plasma","units":[{"ucum":"nmol/L","display":"nmol/L"}],"referenceRanges":[{"population":"18+","low":null,"high":74.9,"unit":"nmol/L","unitDisplay":"nmol/L","note":"Printed by labs as '<75 nmol/L'. It is a risk cut-off, not the central 95% of a healthy population: Labcorp notes that 15-20% of the White population have levels at or above 75 nmol/L. Mayo has no reference values for people under 18. Different assays can give different results, so look at the cut-offs printed on your own report.","sources":[{"title":"Lipoprotein(a), Serum (test LIPA1)","url":"https://www.testcatalog.org/show/LIPA1","publisher":"Mayo Clinic Laboratories"},{"title":"Lipoprotein(a) (test 120188)","url":"https://www.labcorp.com/tests/120188/lipoprotein-a","publisher":"Labcorp"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"A cholesterol-carrying particle like LDL with an extra protein attached, counted in nmol/L. Your level is mostly set by your genes and stays fairly steady.","url":"https://bloodtesttracker.com/markers/lipoprotein-a-molar","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}