👉 Average fluid, often referred to as average blood plasma volume, is the mean volume of plasma in a given blood sample. It represents the proportion of water in the blood and is typically expressed as a percentage of total blood volume. This value is crucial for understanding how much fluid is available for various bodily functions, such as regulating body temperature, transporting nutrients and waste, and maintaining blood pressure. A healthy average fluid level is generally considered to be around 40-50% of total blood volume, though this can vary among individuals and depending on factors like age, sex, and overall health status.