Brad Reisfeld is a professor of chemical and biological engineering, biomedical engineering, and public health at Colorado State University. Your blood serves numerous roles to maintain your health.

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

The anion gap blood test measures the acid-base and electrolyte balance in the blood. Results can show whether there is an imbalance in a person’s pH levels, which may be making the blood too acidic ...

It’s common for doctors to recommend getting bloodwork following a medical appointment or routine check-up. Blood tests can identify deficiencies in vitamins or minerals, immune system problems, or ...

Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show, a new ...

When her husband was undergoing cancer treatment, Cindy Perez of Southwest Ranches, Fla., learned about a new blood test that could help find early cancers. The 50-year-old said she felt fine, but her ...

When it comes to maintaining health, it can be helpful to understand an optimal baseline for some matters. Learning a healthy weight range for your height, age, and gender, for instance, can be useful ...

BD’s new MiniDraw diagnostic devices could let pharmacists—and, one day, maybe patients—manage blood testing needs and monitor health conditions. BD received its FDA authorizations for two blood draw ...

Hemochromatosis is a disorder that causes your body to absorb too much iron. Blood tests that measure iron levels in your blood and liver can help diagnose the condition. The medical disorder ...