Davita Gfr Calculator Adults

CKD-EPI Equation:

\[ GFR = 175 \times (SCr)^{-1.154} \times (Age)^{-0.203} \times (0.742 \text{ if female}) \times (1.212 \text{ if African American}) \]

Serum Creatinine (SCr):

mg/dL

Age:

years

Gender:

Race:

Estimated GFR:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the DaVita GFR Calculator?

The DaVita GFR Calculator estimates glomerular filtration rate (GFR) using a modified CKD-EPI equation. It provides an accurate assessment of kidney function for adult patients, incorporating serum creatinine, age, gender, and race factors.

2. How Does the Calculator Work?

The calculator uses the following equation:

\[ GFR = 175 \times (SCr)^{-1.154} \times (Age)^{-0.203} \times (0.742 \text{ if female}) \times (1.212 \text{ if African American}) \]

Where:

\( SCr \) — Serum creatinine (mg/dL)
\( Age \) — Age in years
0.742 — Female multiplier
1.212 — African American race multiplier

Explanation: This equation provides a reliable estimate of kidney function by accounting for demographic variations in creatinine production and muscle mass.

3. Importance of GFR Calculation

Details: Accurate GFR estimation is essential for diagnosing chronic kidney disease, determining appropriate treatment plans, and adjusting medication dosages for renal impairment.

4. Using the Calculator

Tips: Enter serum creatinine in mg/dL, age in years, select gender and race. All values must be valid (creatinine > 0, age between 1-120).

5. Frequently Asked Questions (FAQ)

Q1: Who should use this calculator?
A: This calculator is designed for adult patients (18+ years) to estimate kidney function. It should not be used for children or pregnant women.

Q2: What are normal GFR values?
A: Normal GFR is generally ≥90 mL/min/1.73m². Values between 60-89 may indicate mild kidney impairment, while values below 60 for 3+ months indicate chronic kidney disease.

Q3: When is the best time to measure creatinine?
A: For most accurate results, measure creatinine in a morning fasting sample. Avoid testing after meat-heavy meals or strenuous exercise.

Q4: Are there limitations to this equation?
A: This equation may be less accurate in elderly patients, those with extreme body weights, amputees, or people with rapidly changing kidney function.

Q5: How often should GFR be calculated?
A: Frequency depends on individual health status. People with known kidney disease may need quarterly monitoring, while those at risk may need annual testing.