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LIPID PANEL
Also printed as: LDL-C · Low-density lipoprotein · Bad cholesterol
Educational only — not medical advice.
LDL measures the cholesterol carried by low-density lipoprotein particles, which deliver cholesterol to tissues throughout the body. When there is more of it circulating than the body is using, more can end up in artery walls over time. On many panels it is calculated rather than measured directly.
LDL is the lipid number most closely tied to long-term cardiovascular risk, which is why targets are personalised rather than universal. Your own target depends on the rest of your risk picture, and only your doctor can set it with you.
TYPICAL ADULT RANGE
Many labs report under 100 mg/dL as optimal for adults, with lower targets for people at higher cardiovascular risk. Ranges and targets vary by lab and by individual risk. Reported in mg/dL.
Reference ranges vary by lab, by method, and by age and sex. Always read your own result against the range printed on your report.
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A low LDL is generally viewed favourably and is often the intended result of medication or a dietary change. Genetics account for naturally low levels in some people. Occasionally a low value follows recent illness, an overactive thyroid, or a digestive condition affecting absorption. There is nothing to act on from a low LDL by itself.
A higher LDL is very common and has familiar contributors: eating pattern, body weight, activity, thyroid activity, pregnancy, and — importantly — genetics. Familial hypercholesterolemia is more common than most people realise and runs in families, so a high LDL with a family history of early heart disease is worth flagging specifically. When triglycerides are high, the calculated LDL becomes less reliable, which is one reason your doctor may order a direct LDL or ApoB. What to do about an elevated LDL depends entirely on your overall risk, and that decision is your doctor's to make with you.
Your doctor is the one who can read this number against your history, symptoms, and medications.
Educational only — not medical advice. Lab results only mean something alongside your history, symptoms, medications, and the rest of your panel. Bring questions to your doctor; they are the one who can interpret your results for you.
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