What is different between pcv and hct?

PCV (Packed Cell Volume) and HCT (Hematocrit) both measure the proportion of blood volume occupied by red blood cells, but they are expressed differently. PCV is determined by centrifuging a blood sample, while HCT is often calculated as a percentage based on the volume of red blood cells in relation to the total blood volume. Although they are related and often yield similar values, the terms can be used in different contexts within clinical settings.