Skip to content

Blood test results by age and sex

What’s typical for U.S. adults at every age, from a national health survey, and how the usual ranges labs print change with age.

85 tests with U.S. survey data86 more with ranges by age

Where the survey numbers come from

The National Health and Nutrition Examination Survey (NHANES) measures blood from a sample of the whole U.S. population, up to 20,311 adults per test here. That’s everyone, not a healthy group, so common doesn’t mean ideal and uncommon doesn’t mean a problem. Each page shows the usual range labs print beside it. Analysis by Blood Test Tracker, not endorsed by CDC, NCHS or HHS.

Typical levels from the U.S. survey

Blood Cells

Usual ranges that change with age

No U.S. survey data for these, but the reference range labs print differs by age group, often from childhood to later life.

Heart & Cholesterol

Vitamins & Nutrients

Inflammation

Allergies

Bones & Muscles

Pancreas & Digestion

Cancer Markers

Brain & Nerves

Blood Gases & Acid-Base