Cholesterol Test (Lipid Panel)
Reviewed
Also called: Cholesterol test, Lipid profile, Lipid panel, Cholesterol levels
A lipid panel measures cholesterol fractions and triglycerides to help assess cardiovascular risk.
Specimen: Blood
Why this test may be ordered
- Routine cardiovascular risk assessment
- Monitoring lifestyle or lipid-lowering treatment
- Assessing risk with diabetes, high blood pressure, smoking, family history, or other factors
Preparation and collection
Some lipid panels do not require fasting, while others do. Follow the ordering clinician's and laboratory's instructions.
A health professional usually takes a small blood sample from a vein. Collection normally takes only a few minutes.
Blood collection has a small risk of brief discomfort, bruising, light-headedness, or rarely infection at the needle site.
Understanding results
Lipid values are interpreted as part of overall cardiovascular risk, not by one number alone. Age, existing disease, family history, blood pressure, diabetes, smoking, and treatment all matter.
- Less favourable lipid pattern: May indicate higher long-term cardiovascular risk depending on the component and overall risk profile. Limitation: A single lipid value cannot determine individual risk or treatment by itself. Next step: Complete cardiovascular risk assessment and discuss lifestyle, repeat testing, or treatment with a clinician.
- More favourable lipid pattern: Measured components may be closer to the clinician's goals. Limitation: Favourable lipids do not remove all cardiovascular risk. Next step: Continue risk-factor review and monitoring at the recommended interval.
- Calculated LDL can be less reliable in some triglyceride ranges or non-fasting circumstances.
- Acute illness, pregnancy, alcohol, diet, weight change, medicines, and fasting status can affect results.
What to do next
The clinician may calculate overall risk, repeat a fasting or non-fasting panel, review secondary causes, or discuss lifestyle and medicines.
- Which reference interval and units apply to my result?
- Could medicines, supplements, illness, or sample timing affect this result?
- Do I need a repeat test or another test before any conclusion is made?
Evidence source
U.S. National Library of Medicine: Cholesterol Test (Lipid Panel)