Hematocrit( packed cell volume,血细胞比容) the volume of red blood cells as a percentage of centrifuged whole blood M:40~50% F:37~48% International Council for Standardization in Haematology (ICSH) Recommendations for"Surrogate Reference"Method for the Packed Cell Volumethe volume of red blood cells as a percentage of centrifuged whole blood M: 40~50% F: 37~48% Hematocrit（packed cell volume, 血细胞比容） International Council for Standardization in Haematology (ICSH) Recommendations for "Surrogate Reference" Method for the Packed Cell Volume