Gfr Davita Calculator

GFR Davita Calculator (CKD-EPI 2009)

Estimated GFR: ' + gfrRounded + ' mL/min/1.73 m²

Interpretation:

Understanding Your Kidney Health with the GFR Davita Calculator

The Glomerular Filtration Rate (GFR) is a crucial indicator of kidney function. It measures how well your kidneys are filtering waste products from your blood. A healthy GFR means your kidneys are working efficiently, while a decreased GFR can signal kidney disease.

What is GFR?

GFR represents the volume of fluid filtered from the blood into the Bowman's capsule per unit of time. It's expressed in milliliters per minute per 1.73 square meters of body surface area (mL/min/1.73 m²). Because directly measuring GFR is complex and invasive, it's usually estimated using formulas that incorporate factors like serum creatinine levels, age, sex, and sometimes race.

Why is GFR Important?

Monitoring GFR is vital for:

• Early Detection: Identifying kidney disease in its early stages, when interventions can be most effective.
• Staging CKD: Classifying the severity of Chronic Kidney Disease (CKD) into different stages.
• Treatment Planning: Guiding treatment decisions, including medication dosages and lifestyle changes.
• Prognosis: Predicting the progression of kidney disease and potential need for dialysis or transplant.

The Davita GFR Calculator (CKD-EPI 2009)

Davita, a leading provider of kidney care services, offers various tools to help patients and healthcare professionals understand kidney health. Their GFR calculator typically utilizes established formulas like the CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) equation. The calculator above uses the CKD-EPI 2009 formula, which is widely accepted and used globally.

The CKD-EPI 2009 equation considers:

• Serum Creatinine (mg/dL): A waste product from muscle metabolism, its level in the blood is inversely related to GFR.
• Age (years): GFR naturally declines with age.
• Sex: Biological differences between males and females affect creatinine levels and GFR.
• Race (African American/Non-African American): The 2009 CKD-EPI formula includes a race coefficient, as African Americans tend to have higher average creatinine levels for a given GFR. Note: Newer formulas like CKD-EPI 2021 have removed the race variable to address health equity concerns.

How to Use This Calculator

1. Enter Serum Creatinine: Input your serum creatinine level in milligrams per deciliter (mg/dL). This value is obtained from a blood test.
2. Enter Age: Provide your age in years.
3. Select Sex: Choose whether you are male or female.
4. Select Race: Indicate if you are African American or Non-African American.
5. Click "Calculate GFR": The calculator will instantly provide your estimated GFR and an interpretation of your kidney function stage.

Interpreting Your GFR Results (CKD Stages)

GFR values are categorized into stages of Chronic Kidney Disease (CKD):

• GFR ≥ 90 mL/min/1.73 m²: Normal kidney function (Stage 1 CKD if there are other signs of kidney damage).
• GFR 60-89 mL/min/1.73 m²: Mildly decreased kidney function (Stage 2 CKD if there are other signs of kidney damage).
• GFR 45-59 mL/min/1.73 m²: Mild-to-moderate decreased kidney function (Stage 3a CKD).
• GFR 30-44 mL/min/1.73 m²: Moderate-to-severe decreased kidney function (Stage 3b CKD).
• GFR 15-29 mL/min/1.73 m²: Severely decreased kidney function (Stage 4 CKD).
• GFR < 15 mL/min/1.73 m²: Kidney failure (Stage 5 CKD), often requiring dialysis or kidney transplant.

Example Calculations:

Example 1: Healthy Individual

• Serum Creatinine: 0.8 mg/dL
• Age: 35 years
• Sex: Female
• Race: Non-African American
• Estimated GFR: Approximately 105 mL/min/1.73 m² (Normal kidney function)

Example 2: Mildly Decreased Function

• Serum Creatinine: 1.2 mg/dL
• Age: 60 years
• Sex: Male
• Race: Non-African American
• Estimated GFR: Approximately 68 mL/min/1.73 m² (Mildly decreased kidney function, Stage 2 CKD)

Example 3: Moderate-to-Severe Decreased Function

• Serum Creatinine: 2.5 mg/dL
• Age: 70 years
• Sex: Female
• Race: African American
• Estimated GFR: Approximately 32 mL/min/1.73 m² (Moderate-to-severe decreased kidney function, Stage 3b CKD)

Important Disclaimer

This GFR calculator is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider for any health concerns or before making any decisions related to your health or treatment. GFR estimation formulas have limitations, and your doctor will consider your overall health, medical history, and other test results for an accurate assessment of your kidney health.