What is described by the suffix "-crit"?

The suffix "-crit" is derived from the Greek word "kritēs," meaning "to separate" or "to judge." In medical terminology, this suffix is commonly associated with the concept of separating components within a sample, particularly in hematology where it refers to the separation of blood into its various components.

In a clinical context, the term "hematocrit" refers to the proportion of blood volume that is occupied by red blood cells, obtained through the process of centrifuging blood to separate it into its components. This understanding of "-crit" as relating to separation firmly supports the answer regarding its meaning.

The other options do not relate to the definition of "-crit." Heart conditions, while relevant in the medical field, do not correspond to the notion of separation. Likewise, hearing pertains to auditory functions and does not connect with the idea of separating blood components. The act of withdrawing fluid relates more to processes such as aspiration or drainage rather than to the concept encapsulated by "-crit." This clarification emphasizes why the chosen answer aligns accurately with the suffix's meaning.