The formula to calculate the PF Ratio is:
\[ \text{PFR} = \frac{\text{P}}{\text{F}} \]
Where:
The PF Ratio is a measure used in medicine to assess the efficiency of oxygen exchange in the lungs. It is calculated by dividing the arterial pO2 by the fraction percent of inspired oxygen. This ratio is important for diagnosing and monitoring conditions like acute respiratory distress syndrome (ARDS).
Let's consider an example:
Using the formula to calculate the PF Ratio:
\[ \text{PFR} = \frac{80}{0.21} \approx 380.95 \]
This means that the PF Ratio for this scenario is approximately 380.95.
