In July, the US Food and Drug Administration (FDA) approved a new blood-based test to screen for colorectal cancer (CRC). The FDA's approval of Shield (Guardant Health) marks a notable achievement, as ...

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 ...

The red cell distribution width (RDW) blood test measures differences in the volume and size of your red blood cells. Red blood cells help carry oxygen from the lungs to other parts of your body.

In many cases, it's not until memory problems start creeping up that most people learn they have Alzheimer's disease. By then, the disease may already be progressing, leaving limited options for ...

Talk to your doctor if you have signs of anemia, such as excessive fatigue, because it may be helpful to have a red cell distribution width (RDW) along with a complete blood count (CBC) test. Be ...

The anion gap blood test measures the acid-base and electrolyte balance in the blood. Results can show whether there is an imbalance in a person’s pH levels, which may be making the blood too acidic ...

New blood tests are set to change how Alzheimer's is diagnosed and treated by offering an easy way to see if patients have amyloid plaques and tau tangles in their brains — hallmarks of the disease. A ...

MPNs involve overproduction of blood cells, while MDS results in poorly formed cells, affecting blood cell function and counts. Diagnosis requires blood tests, bone marrow biopsy, and genetic testing ...