Low-Density Lipoprotein (LDL) Oxidized Antibody, Serum — Arbitrary Concentration
This blood test measures antibodies directed against oxidized LDL, a form of low-density lipoprotein involved in atherosclerosis development.
["The result may help evaluate an immune response to oxidized LDL, but it does not directly measure LDL cholesterol."]
Key facts at a glance
- LOINC
- 48143-2
- Short code
- LDL.oxidized Ab Ser-aCnc
- Synonyms
- LDL.oxidized Ab Ser-aCnc
- Category
- lipid
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0
- Ref high
- 100
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 83721
- SNOMED
- 113079007
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What is this test?
This test measures antibodies against oxidized low-density lipoprotein (LDL) in your blood. Oxidized LDL can contribute to inflammation and plaque buildup in artery walls.
Why might I need this test?
It may be ordered to assess whether your immune system has developed antibodies to oxidized LDL. Your clinician will consider the result along with your medical history, symptoms, cholesterol levels, and other cardiovascular risk factors.
How is the test performed?
A blood sample is drawn from a vein and analyzed in the laboratory to determine the concentration of oxidized LDL antibodies. The reported result is an arbitrary concentration rather than a direct cholesterol measurement.
How do I prepare for the test?
This test usually does not require fasting, but follow your clinician's instructions. Tell the laboratory if you are pregnant, have recently received a blood transfusion, or are taking medicines that may affect immune-system testing.
Reference range
Optimal: <100 mg/dLN/A
Fasting for 12-14 hours preferred. Water is permitted. Avoid alcohol for 24 hours before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An elevated result may indicate an immune response to oxidized LDL and can occur with cardiovascular risk or autoimmune conditions. A result should not be interpreted as high LDL cholesterol because the test measures antibodies rather than cholesterol itself.
Short name
Oxidized LDL Antibody
Frequently asked questions
Is this the same as an LDL cholesterol test?
What does an elevated result mean?
Do I need to fast before this test?
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