Percent of Total Hemoglobin

**Semantic type:** Quantitative Concept

**Definition:** A unit for percentage measurement of any type or component of hemoglobin or its derivative such as methemoglobin; carboxyhemoglobin; sulfhemoglobin, etc. evaluated as fraction of total hemoglobin.

**Synonyms:** - %Total Hgb - %{Total Hgb} - %{Total Hgb}