Tests guide

Lipid Panel

A lipid panel is a blood test that measures cholesterol and triglycerides. It is one of the main tests used to help assess heart and blood vessel health.

Last updated 4 sources

At a Glance

  • A standard lipid panel reports total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides.
  • Many reports also show non-HDL cholesterol, which is total cholesterol minus HDL.
  • High cholesterol usually has no symptoms, so blood testing is how it is found.
  • Fasting is not always required, but some labs and clinicians still request it.
  • Reference ranges vary by lab and guideline, and results are interpreted by a clinician alongside other risk factors.

What It Is

Lipids are fats and fat-like substances in the blood. The two main ones measured are cholesterol and triglycerides. Cholesterol travels in lipoproteins, mainly LDL (often called "bad" cholesterol) and HDL (often called "good" cholesterol).

Higher LDL and triglycerides and lower HDL are generally associated with a higher risk of plaque building up in the arteries. The panel gives a snapshot that helps estimate this risk together with factors such as age, blood pressure, smoking, and diabetes.

Common Terminology

Total cholesterol
The overall amount of cholesterol in the blood, carried by all lipoprotein types.
LDL cholesterol
Cholesterol carried by low-density lipoprotein; higher levels are linked to artery plaque.
HDL cholesterol
Cholesterol carried by high-density lipoprotein, which helps move cholesterol away from arteries to the liver.
Triglycerides
A type of fat in the blood that stores energy from food; levels rise after eating.
Non-HDL cholesterol
Total cholesterol minus HDL, reflecting cholesterol in all the potentially plaque-forming particles.
VLDL
Very-low-density lipoprotein, which mainly carries triglycerides; sometimes estimated on reports.

Why the Test Is Done

A lipid panel is among the most commonly ordered blood tests.

  • Routine screening of adults, generally repeated every few years when results are in the expected range.
  • Part of assessing risk of heart disease and stroke.
  • Follow-up in people with known high cholesterol, heart disease, diabetes, or kidney disease.
  • Checking response to lifestyle changes or cholesterol-lowering medication.
  • Screening in children and teens, especially with a family history of high cholesterol or early heart disease.

What the Results Generally Describe

Commonly cited adult reference values (in mg/dL) are listed below as general information. Labs and guidelines differ, other countries often report in mmol/L, and a clinician interprets individual results.

  • Total cholesterol: below 200 is often described as desirable, 200 to 239 as borderline high, and 240 or higher as high.
  • LDL cholesterol: below 100 is often described as optimal, with higher bands from near optimal up to very high at 190 or above.
  • HDL cholesterol: 60 or higher is often described as protective; below 40 in men or below 50 in women is often described as low.
  • Triglycerides: below 150 is often described as normal, 150 to 199 as borderline high, 200 to 499 as high, and 500 or higher as very high.
  • Non-HDL cholesterol: below 130 is commonly cited as desirable for many adults.
  • Goals can differ for people with heart disease, diabetes, or other risk factors.

How the Test Is Done

The test uses a small blood sample.

  • Blood is usually drawn from a vein in the arm by a phlebotomist or nurse.
  • Some settings use a finger-stick sample with a portable analyzer.
  • The lab measures total cholesterol, HDL, and triglycerides, and often calculates LDL with a formula.
  • Direct LDL measurement may be used when triglycerides are high.

Preparation and What to Expect

Instructions are given by the ordering office or lab.

  • Non-fasting tests are now widely accepted, but some clinicians request fasting for 9 to 12 hours, mostly to get a more accurate triglyceride value.
  • When fasting is requested, water is generally allowed.
  • Alcohol, a very high-fat meal, recent illness, and pregnancy can affect results.
  • The blood draw usually takes a few minutes and may leave a small bruise.

When Results Are Discussed With a Clinician

Results are generally reviewed as a whole, not one number at a time.

  • Results outside the reference range are commonly reviewed together with other heart risk factors.
  • Very high triglycerides are often discussed because they are also linked to pancreatitis.
  • Unexpected results are sometimes repeated to confirm them.
  • Trends compared with earlier panels are often part of the discussion.
  • Family history may lead to discussion of testing relatives.

Questions to Ask a Healthcare Professional

General questions people often find useful to bring to an appointment:

  • Do I need to fast before this lipid panel?
  • Which values on my report are calculated versus measured?
  • How are these results combined with my other risk factors?
  • How often is a lipid panel generally repeated?
  • What do non-HDL cholesterol and VLDL on the report mean?
  • Are any additional cholesterol-related tests sometimes considered?

Sources

This guide was written in plain language from the following authoritative references.

  1. Cholesterol Levels — MedlinePlus (U.S. National Library of Medicine)
  2. Cholesterol — MedlinePlus (U.S. National Library of Medicine)
  3. Blood Cholesterol — National Heart, Lung, and Blood Institute (NIH)
  4. Cholesterol — Centers for Disease Control and Prevention (CDC)

Last updated October 8, 2026. FreeDoc guides are general educational information and are not a substitute for care from a qualified professional.