Quick Facts
- Sample: Blood
- Fasting: No special preparation required
- Turnaround: 1-2 days. May take longer based on weather, holiday, or lab delays.
What This Test Measures
This test directly measures the amount of LDL cholesterol (low-density lipoprotein cholesterol), often called "bad" cholesterol, in your blood. Unlike methods that estimate LDL cholesterol through calculation, this test provides a direct measurement, which can be useful if you have not fasted or if your triglyceride levels are elevated.
Elevated LDL cholesterol is associated with an increased risk of atherosclerosis (hardening of the arteries) and heart disease. Your result is reported as a quantitative value and is most useful when considered alongside other lipid measurements as part of a broader clinical picture.
Benefits
- Directly measures LDL cholesterol without relying on calculation
- Useful for nonfasting patients
- Useful when triglycerides exceed levels that limit calculated LDL accuracy
- Supports assessment of cardiovascular risk factors
- No special preparation required before testing
- Quick turnaround for timely results
Who Is This Test For?
- People who want to check their LDL cholesterol level
- People who have not fasted before testing
- People with elevated triglyceride levels
- People being monitored for cardiovascular risk factors
- People working with a healthcare provider on cholesterol management
- People whose calculated LDL results may be unreliable
How It Works
- Order Your Test Online
- Visit a Local Lab
- Get Results Online
FAQ
1. What does this test measure?
This test directly measures the amount of LDL cholesterol (low-density lipoprotein cholesterol), often called "bad" cholesterol, in your blood, producing a quantitative result. Unlike methods that estimate LDL cholesterol through calculation, this direct method does not depend on formulas requiring fasting or specific triglyceride thresholds, so it can provide a result even when those conditions aren't met. It may help a healthcare provider evaluate your risk of atherosclerosis and heart disease, particularly when calculated LDL results may not be reliable, though it measures LDL cholesterol itself rather than diagnosing cardiovascular disease directly. It is not intended to independently diagnose any condition.
2. Who should get this test, and when should I order it?
This test may be useful if you have not fasted before testing, have elevated triglyceride levels that could make calculated LDL results unreliable, or are monitoring cholesterol as part of overall cardiovascular health alongside other lipid measurements. You might specifically consider ordering it in these situations, such as when a prior calculated LDL result may not have been accurate. It is not intended for every person with cholesterol concerns, and appropriateness should be discussed with a healthcare provider. This test does not replace a full medical evaluation.
3. Do I need to fast before this test?
No special preparation is required for this test.
4. How quickly will I get results?
Results are typically available in 1-2 days. This may take longer based on weather, holiday, or lab delays.
5. How do I interpret my results?
The meaning of your LDL cholesterol result depends on your overall clinical context, including your symptoms, medical history, medications, other lipid results, and specimen quality. An elevated result does not automatically confirm a diagnosis, and a normal result does not rule out cardiovascular risk. Discuss your results with a qualified healthcare provider for proper interpretation.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
6. What should I do if my results are abnormal?
If your results are outside the expected range, review them with a qualified healthcare provider. They can help determine what the result means for your health and whether any further evaluation is appropriate. Do not start, stop, or change any medication without medical guidance.
7. How often should I get tested?
Testing frequency should be determined as directed by your healthcare provider, based on your individual health needs and cardiovascular risk factors.
Pre-test preparation
No special preparation is required for this test.
