This article was reviewed by Felix Gussone, MD. In this guide, we’ll break down what most biomarker lab tests measure, how to prepare for them, and what to do once you receive your results. Not ...

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 ...

It’s common for doctors to recommend getting bloodwork following a medical appointment or routine check-up. Blood tests can identify deficiencies in vitamins or minerals, immune system problems, or ...

A company is looking at blood as a possible diagnosis tool for mental illness. Blood tests can check for infections and high cholesterol, but currently, they can’t test for mental illness or pain. A ...

Multi-cancer blood tests promise early detection, but the evidence is thin, the risks real, and they’re no substitute for listening to your body.

Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is ...

Lipoprotein(a) or Lp(a) is a genetically controlled risk factor for a heart attack. Cardiologist explains why it's important to be aware of your levels.

A person should only fast before a blood test if their doctor or healthcare professional specifically instructs them to do so. Not all blood tests require fasting. If a doctor or healthcare ...

Not all blood tests require you to fast, but you should always follow your doctor’s instructions if you do need to fast for a specific exam. Blood tests are common procedures that healthcare providers ...