What does the medical term hct stand for?

Hematocrit (HCT) in medicine refers to the proportion of red blood cells in the blood. Hematocrit indicates the percentage of red blood cells in the total blood volume.

Hematocrit test is a simple blood test that measures the percentage of red blood cells in the bloodstream. Red blood cells play a vital role in the normal functioning of various organ systems in the body, primarily responsible for delivering oxygen to tissues and organs throughout the body. The normal range of hematocrit varies among different population groups: for adult males it is 41%–50%, for adult females 36%–44%, for preschool children 32%–42%, and for newborns 45%–61%.

Hematocrit levels below or above the normal reference ranges are considered abnormal. Low hematocrit values are commonly associated with conditions such as hemolytic anemia, thalassemia, and iron deficiency anemia. Elevated hematocrit levels are often linked to disorders including polycythemia vera, myelofibrosis, and leukemia.