When a newborn has polycythemia, it means they have too many red blood cells. A doctor typically diagnoses polycythemia using a hematocrit test. Polycythemia can lead to thickening of the blood and ...

Dear Dr. Roach: Recent blood tests have left me perplexed. My hemoglobin, hematocrit and MCV were slightly high. What might be the underlying cause of these elevations? What do hemoglobin, hematocrit ...

An Hgb blood test measures a person’s hemoglobin levels. This protein helps red blood cells carry oxygen and keep cells and organs functioning. Low hemoglobin is known as anemia. Hemoglobin is also ...

PROVIDENCE, R.I. [Brown University] — Men over 65 with even slightly abnormal red blood cell counts – either too low or too high – are at greater risk of post-operative death or car-diac events ...

Elderly men with even slightly abnormal red blood cell counts have a higher risk of dying or having a serious cardiac event after major surgery, according to a new study. Elderly patients are at risk ...