Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. How much protection do you currently have against COVID-19? The answer depends on so much: whether you’ve already had COVID-19 ...

Add Yahoo as a preferred source to see more of our stories on Google. Roche's Elecsys pTau181 test is the second blood-based biomarker test to receive FDA clearance for Alzheimer’s disease this year. ...

When it comes to colorectal cancer, there are several tests used for screening which one to choose depends on the patient. The best test is the one that gets done and done. Well, Dr Cke Dalba with the ...

What Is an Arterial Blood Gas Test (ABG)? An arterial blood gas (ABG) test measures oxygen and carbon dioxide levels in your blood. It also measures your body’s acid-base (pH) level, which is usually ...

A water deprivation test checks how the body responds to several hours without water intake. A doctor may request this test to help diagnose conditions such as arginine vasopressin disorder (AVD).

Vitamin B12 is vital for good health. Your body needs steady levels of this nutrient to make enough red blood cells and keep your nervous system working. If you eat a balanced diet, you’re probably ...

The test is for older Americans already exhibiting signs of Alzheimer's. The Food and Drug Administration (FDA) cleared the first blood test on Friday to help diagnose Alzheimer's disease. The test, ...

Recent research suggests that blood tests may show markers of oral cancer. But a blood test isn’t enough to confirm an oral cancer diagnosis. A biopsy is the only way to confirm it. Blood tests for ...