Ejection fraction (EF) measures the percentage of blood your left ventricle pumps out with each heartbeat. A typical range is 52% to 72% for males and 54% to 74% for females. An EF below 40% indicates ...

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A mean platelet volume (MPV) test measures the average size of your platelets, which are small blood cells that help with blood clotting. Typical MPV levels range from 7 to 13 femtoliters. High MPV ...