Is the Galleri multi-cancer blood test worth it? A doctor explains real-world performance data and explains why no major medical society recommends the test for screening.

Eun Lee, MD Key Takeaways A T4 test checks thyroid function by measuring thyroxine levels.Symptoms of high T4 include a fast ...

Your gut microbiome is like a thriving city of 100 trillion microscopic residents, invisible to the naked eye, living in your gut. No gut microbiome is the same – making yours truly one of a kind, ...

In July, the US Food and Drug Administration (FDA) approved a new blood-based test to screen for colorectal cancer (CRC). The FDA's approval of Shield (Guardant Health) marks a notable achievement, as ...

Doctors may order a cyclic citrullinated peptide (CCP) antibody test and other exams to confirm or rule out a rheumatoid arthritis (RA) diagnosis. A positive CCP antibody test doesn’t necessarily mean ...

Testing positive for COVID-19 is not exactly a positive experience. After all, wanting to go viral these days doesn’t tend to mean wanting to be infected by the severe acute respiratory syndrome ...

A high school teacher uses her state’s testing blueprint to give students practice with the standards and question types they’ll encounter most frequently.

A stool test is a diagnostic procedure that involves analyzing fecal matter, or poop, to check for signs of infection, inflammation, or disease. The specific analysis depends on a person’s symptoms ...