Category: Medical formulas

Did you know that a significant percentage of critically ill patients develop fluid overload, which is associated with increased mortality rates? Knowing precisely **how do you calculate fluid overload** is a vital skill for medical practitioners to enable effective patient management and reduce potential complications.

In critical care medicine, the oxygenation index (OI) is a vital tool for assessing the severity of a patient's hypoxic respiratory failure. In fact, a study published in 2025 confirmed its role in guiding treatment decisions, which is why it's so important to understand: **what is the formula for O2 index?**