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 ...

Famed biohacker Bryan Johnson and his Blueprint team devised this measure of harmful plastic particles in your blood.

Researchers hope to improve survival rates through early detection with a blood test that can detect over 50 types of cancer.

Jack Welter didn’t feel sick when he agreed to take a new blood test that looks for multiple types of cancer. But, approaching 60, he thought it couldn’t hurt. To his surprise, the test came back ...

Free-floating DNA carrying cancerous mutations was detected in blood three years before any other signs of cancer appeared. If approved as a test, doctors might detect cancers sooner and treat them ...

A Bay Area biotech company says its groundbreaking blood test can detect more than 50 cancers. Early detection can improve cancer outcomes and can save lives. Cancer is the second leading cause of ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

Thyroid blood tests help figure out how well your thyroid gland is working. TSH helps the thyroid gland know when to make more thyroid hormones. Free T4 is the type of hormone that becomes active when ...

A blood test conducted in a prehospital setting may rapidly distinguish between ischemic and hemorrhagic stroke, potentially facilitating more rapid, targeted treatment. The test measures the levels ...

ST. LOUIS, Jan. 8, 2026 /PRNewswire/ -- Mercy is participating in a study designed to evaluate the clinical impact of GRAIL's Galleri (R) multi-cancer early detection (MCED) test among Medicare ...