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.

In medicine, a person’s blood-test results are compared with the average range in a population. But results are highly individual and tightly regulated around a person’s own stable values. Changes to ...

Professor of Chemical and Biological Engineering, Biomedical Engineering, and Public Health, Colorado State University Your blood serves numerous roles to maintain your health. To carry out these ...

Whenever we think of the highest marker for heart attack, cholesterol is the name that comes up first. Yet, there’s another blood test that might actually out‑shine cholesterol, in flagging your risk ...

DEAR DOCTOR K: Both my parents had heart disease, so I'm worried I might get it. A friend said I should get a CRP test, but my doctor hasn't ordered one. Should I ask him about the test? DEAR READER: ...

What Does a Hematocrit Test Measure? A hematocrit test is a blood test that measures the level of red blood cells in your blood. Your blood is made up of plasma and blood cells. Plasma is the liquid ...

Steffini Stalos, DO, FCAP, is a pathology and lab medicine physician. She is also the chief medical officer of the lab consultancy firm Blood Associates, LLC. Mean corpuscular hemoglobin concentration ...