Lipid Profile with Free Cholesterol Measurement (Serum)
This test measures the amount of free (unesterified) cholesterol in your blood, which is a key part of your overall lipid profile.
["Free cholesterol helps assess heart health and lipid metabolism."]
Key facts at a glance
- LOINC
- 111245-7
- Short code
- Lambda LC Free Msmt Ur
- Synonyms
- Lambda LC Free Msmt Ur
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Matters
Cholesterol is a vital substance in your body, but having too much can increase your risk of heart disease and other health problems. Free cholesterol is one type of cholesterol that circulates in your bloodstream. This test helps doctors understand how your body is managing cholesterol levels, which can be important for preventing or managing conditions like high cholesterol or atherosclerosis.
What to Expect Before the Test
No special preparation is needed for this test. You may be asked to fast for 8–12 hours before your blood draw, but your doctor or lab will confirm this if it applies to your specific test order. Bring any medications you’re currently taking, as some may affect your results.
How the Test Works
A small amount of blood is drawn from a vein in your arm. The blood sample is then analyzed to measure free cholesterol levels using a specialized laboratory technique that separates and quantifies this component of your lipid profile.
What the Results Mean
Your results will be compared to general reference ranges for free cholesterol, though individual ranges may vary by lab. High levels may signal potential risks for cardiovascular issues, while lower levels might warrant further investigation to rule out metabolic or genetic factors.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Free Cholesterol
Frequently asked questions
What does my free cholesterol level indicate?
How often should I get this test?
Can diet or exercise affect my free cholesterol results?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy