This article was reviewed by Darragh O’Carroll, MD. Understanding Blood Tests: How They Work and What They Can Tell You Blood tests are one of the … ...

The survey results reveal strong enthusiasm for blood-based screening options among adults aged 45 and older, the group ...

Guardant Health markets Shield, an FDA-approved blood test for primary colorectal cancer screening. The Harris Poll conducted the survey from Feb. 24-26, 2026, among 1,189 U.S. adults, ages 45 and ...

A blood osmolality test measures the blood for the concentration of certain dissolved particles. This test can show whether a person has an irregular balance of fluids in their body. Osmolality tests ...

A D-dimer test is a lab test that helps diagnose blood clotting conditions. The test measures the levels of a protein fragment that remains in your blood after multiple blood clots break down. A high ...

With the approval of anti-amyloid monoclonal antibodies to treat early-stage Alzheimer’s disease (AD), the need for accurate and early diagnosis is crucial. Blood-based biomarkers offer a promising ...

Pituitary tumors are atypical growths that develop in the pituitary gland. They are typically noncancerous. Doctors often use blood tests as a first step in diagnosing pituitary tumors. The pituitary ...