Total Antioxidant Capacity of Serum (Plasma)

What Does This Test Measure?

Total antioxidant capacity reflects the combined activity of various antioxidants in your blood, including vitamins (like C and E), enzymes, and other molecules that help prevent damage from unstable molecules called free radicals. This measure is important because oxidative stress can contribute to chronic conditions like heart disease or inflammation.

Why Might You Need This Test?

Your doctor may order this test if you have symptoms of oxidative stress, such as fatigue, chronic inflammation, or if you’re at higher risk for conditions linked to poor antioxidant levels (e.g., certain metabolic disorders or after exposure to toxins). It may also be part of routine blood work for preventive care.

How Is the Test Performed?

A small blood sample is drawn from a vein, typically in your arm. The sample is then processed to measure the combined antioxidant activity in your serum or plasma.

What Are Common Results?

Results are not typically provided as a single numeric range, as they depend on the specific methods used. Instead, they may be compared to your baseline or interpreted relative to your health status and symptoms.