LDL Cholesterol
LDL cholesterol is often called 'bad' cholesterol because it contributes to plaque buildup in arteries.
What is it?
LDL (low-density lipoprotein) cholesterol is a type of lipoprotein that carries cholesterol through your bloodstream. It's often referred to as 'bad' cholesterol because high levels can lead to plaque buildup in your arteries, which can narrow them and increase the risk of cardiovascular issues.
Why is it tested?
LDL cholesterol is tested as part of a lipid panel to assess cardiovascular risk. It helps you and your doctor understand your cholesterol profile and make informed decisions about lifestyle, diet, or treatment.
How is it measured?
LDL cholesterol is measured through a blood test, usually as part of a lipid panel. The test may be done fasting or non-fasting depending on your doctor's recommendation. Results are reported in mg/dL or mmol/L.
Understanding laboratory ranges
A common reference range for LDL cholesterol is below 100 mg/dL for optimal, 100-129 mg/dL for near optimal, and 130-159 mg/dL for borderline high. However, target levels depend on individual cardiovascular risk factors and should be discussed with your healthcare provider. Reference ranges can also vary between laboratories.
Factors that can affect results
- Diet high in saturated and trans fats
- Lack of physical activity
- Genetics and family history
- Body weight
- Age and gender
- Certain medications
- Smoking
Frequently asked questions
References
- · American Heart Association. Cholesterol and Your Health.
- · National Heart, Lung, and Blood Institute. High Blood Cholesterol.
Related markers
Questions for your doctor
- · What do my LDL Cholesterol results mean in context?
- · Are my levels within an appropriate range for me?
- · Should I be tested again, and when?
- · What lifestyle factors might affect my results?
This marker page is for educational purposes only. Reference ranges can differ between laboratories, methods, populations, and circumstances. Always discuss your results with a qualified healthcare provider. KnowMyMarkers does not diagnose medical conditions or replace professional medical advice.