One way they can do that is with a carcinoembryonic antigen test. It measures a protein called CEA in the blood. People with ... 2.5 nanograms per milliliter. Results might vary between labs.

Read on to learn what A1C test results mean. The A1C test measures the percentage of red blood cells with glucose-coated hemoglobin. This measurement gives doctors an idea of the person’s ...

I brought his chart up ... it caused the red blood cells, which contain lots of potassium, to leak the mineral into his serum, the clear-liquid part of the blood. The second test, without a ...