👉 The late fluid refers to the residual or trace amounts of a substance that remains in the body after the majority of its initial elimination has occurred. This can include metabolites, hormones, or other compounds that were not fully excreted through the kidneys or other routes. In the context of fluid balance, late fluid can contribute to the overall volume status in the body, influencing hydration levels and potentially affecting physiological functions such as blood pressure and tissue perfusion. It is often considered in the context of fluid management, particularly in clinical settings where maintaining optimal hydration is crucial for patient care.