A magnesium blood test measures the amount of magnesium, an important mineral, in your blood. Your body needs magnesium from your diet to help your muscles, nerves, heart, and immune system work ...

Blood tests are one of the most widely used and helpful tools in modern medicine. Whether ordered in a clinic or done through an at-home kit, they work by analyzing samples of your blood to uncover ...

The last time I went to the doctor, I lived in a different zip code, belonged to a different body-weight category, and was rounding out a different decade. I never consciously swore off health care, ...

It's a common condition involving hypertension with serious consequences when left untreated. A Dallas Ob-gyn explains why she thinks the test is a game-changer.

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 ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

Galleri is a blood test that aims to detect over 50 types of cancer early. It analyzes cell-free DNA (cfDNA) and methylation patterns to identify potential cancer signals. The test is intended for ...

What Is an MCV Blood Test? MCV stands for mean corpuscular volume. An MCV blood test measures the average size of red blood cells, which have the critical job of carrying oxygen to your organs. If ...