The formula to calculate the Glomerular Filtration Rate (GFR) is:
\[ GFR = \text{constant} \times \left( \frac{\min(\frac{\text{creatinine}}{k}, 1)}{a} \right) \times \left( \frac{\max(\frac{\text{creatinine}}{k}, 1)}{-1.209} \right) \times (0.993)^{\text{age}} \times \text{multiplier} \]
Where:
GFR (Glomerular Filtration Rate) is a measure of how well your kidneys are filtering blood. It is used to check for kidney function and to diagnose and monitor kidney disease. The GFR is calculated using your serum creatinine level, age, gender, and race.
Let's assume the following values:
Using the formula to calculate the GFR:
\[ GFR = 141 \times \left( \frac{\min(\frac{1.2}{0.9}, 1)}{-0.411} \right) \times \left( \frac{\max(\frac{1.2}{0.9}, 1)}{-1.209} \right) \times (0.993)^{50} \times 1.0 = \approx 70.1\text{ mL/min/1.73m²} \]
The estimated GFR is approximately 70.1 mL/min/1.73m².
