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 ...

Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

Your doctor just mentioned ordering a comprehensive metabolic panel, and you’re wondering what that means and why you need it. Don’t worry — this isn’t some scary, complicated procedure. It’s actually ...

Blood tests cannot detect throat cancer. However, they can help indicate a person’s overall health. Doctors may use them to determine whether a person is a suitable candidate for certain types of ...

A new kind of blood test promises to find cancer early—sometimes even before symptoms appear. The pitch is compelling: a ...

A simple blood test could detect colorectal cancer (CRC) with more than 80% accuracy, according to a new study coauthored by researchers at the Fred Hutchinson Cancer Center in Seattle, Washington.

Scientists have developed a highly accurate blood test that can detect brain tumours, including aggressive glioblastomas, ...