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

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 newly approved blood test can help rule out some cases based on the amount of amyloid in the brain. A neurology professor ...

For accurate results, you may need to fast for certain tests. This requires you to avoid certain foods and drinks. Learn more ...

A vitamin B12 blood test is a reliable way to determine if you have adequate levels of this crucial nutrient. Vitamin B12 is ...

What if you could get checked for colon cancer with only a routine blood draw? A new blood test in Michigan is making the process much easier. No bowel prep, no sedation and no awkward stool kit to ...

If you are concerned about your risk of developing cardiovascular disease, you’ll usually get a specific blood test to look at your cholesterol levels to see where things stand. At least, that’s how ...

A TB blood test can find out whether you have the Mycobacterium tuberculosis bacteria in your body. Whether you need to get tested and how often depends on your specific circumstances. A blood test ...

New diagnostic kits aim to revolutionize early screening of the disease, potentially allowing patients to receive ...

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 ...

Westend61 / Getty Images/Westend61 A new blood test that detects a hallmark of Alzheimer’s is poised to change the way doctors diagnose and treat the disease. The test, the first of its kind to be ...