Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 ...

Following your doctor’s instructions is the most important part of preparing for a blood test. Sleeping well, staying hydrated, and avoiding certain foods and drinks can also provide benefits. Blood ...

A new kind of blood test promises to find cancer early—sometimes even before symptoms appear. The pitch is compelling: a single sample of blood could scan the body for dozens of different cancers at ...

Depending on which hospital you go to for your low-risk surgical procedure, you may be 2.4 times more or less likely to be sent for unnecessary blood tests. This is among the findings of a study ...

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

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 ...

Doctors can test for gallbladder issues using a combination of physical exams, blood tests, and imaging studies. Several issues can affect the gallbladder, including gallstones, inflammation, or ...

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 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 ...