Total Antioxidant Capacity of Plasma (measured as milliequivalents of hydrogen peroxide neutralized per liter)
This test measures how effectively your blood plasma protects against oxidative stress, which can damage cells and contribute to chronic diseases.
["Your blood plasma’s ability to neutralize harmful free radicals may help prevent long-term health issues like heart disease or inflammation."]
Key facts at a glance
- LOINC
- 79924-7
- Short code
- TV ann e-prime Vmax TDI
- Synonyms
- TV ann e-prime Vmax TDI
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-tissue-doppler
- 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 Does This Test Measure?
This test evaluates the overall antioxidant capacity of your plasma, which includes natural compounds like vitamins (e.g., vitamin C, E), enzymes, and other molecules that neutralize free radicals. Free radicals are unstable molecules that can cause cellular damage if left unchecked.
Why Is This Test Important?
Measuring antioxidant capacity helps assess your body’s ability to fight oxidative stress, which is linked to aging, chronic inflammation, and diseases such as cardiovascular conditions or certain cancers.
How Is This Test Performed?
A blood sample is drawn from your arm, and the plasma portion is analyzed to determine its antioxidant capacity using a specialized chemical method that quantifies its ability to neutralize hydrogen peroxide.
What Does a Result Mean?
Results are not typically provided in absolute numbers but rather as a relative measure of plasma antioxidant capacity. Higher values suggest stronger protection against oxidative damage, while lower values may indicate increased vulnerability to oxidative stress.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test may be used to evaluate overall oxidative health, monitor conditions associated with oxidative stress (e.g., diabetes, metabolic syndrome), or assess the effects of antioxidant supplements.
Short name
Total Plasma Antioxidant Capacity
Frequently asked questions
Why might my doctor order this test?
What are the possible reasons for abnormal results?
How often should I get 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