A blood osmolality test measures the blood for the concentration of certain dissolved particles. This test can show whether a person has an irregular balance of fluids in their body. Osmolality tests ...

What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

The A1C test can also be used to diagnose gestational diabetes in the first trimester.

Sapha Shibeeb does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Following your doctor’s instructions is the most important part of preparing for a blood test. Sleeping well, staying hydrated, and avoiding certain foods and drinks can also provide benefits. Blood ...

Researchers are studying tests called liquid biopsies, which can provide vital information about cancer genes using only a blood sample. A blood test to find cancer even before it shows any symptoms ...

A differential blood count is a blood test to check your white blood cell levels, which can indicate the presence of infection, disease, or an allergic reaction. Your doctor might order it as part of ...

Several tests measure the level of alcohol in your blood. These procedures are typically simple but may take several weeks to get results. A blood alcohol test measures the percentage of alcohol in a ...

Alzheimer’s disease is a devastating condition that affects more than 7 million Americans, according to the Alzheimer’s Association. As the Baby Boomer generation ages, this number is estimated to ...

The test's maker said the FDA will likely decide on approval later this year. A blood test to screen for colorectal cancer is one step closer to receiving approval from the U.S. Food and Drug ...