Clear answers to your kidney questions.
Understand kidney disease, kidney tests, dialysis and kidney transplantation in clear, practical language — from a nephrologist and kidney transplant physician.

Explore Kidney Health
Start with the topic you are looking for.
Kidney Diseases
CKD, acute kidney injury, diabetic kidney disease, glomerular disease and more.
Explore diseases →Kidney Tests
Understand creatinine, eGFR, urine protein, ACR, ultrasound and kidney biopsy.
Understand tests →Dialysis
What dialysis is, when it is needed, types of dialysis and life on dialysis.
Learn about dialysis →Kidney Transplant
Understand donor evaluation, transplant surgery, rejection and life after transplant.
Explore transplant →Kidney Health
Everyday kidney health, blood pressure, diabetes, prevention and common questions.
Explore kidney health →
Dr. Sagar Gupta
Nephrologist & Kidney Transplant Physician
Dr. Sagar Gupta provides care across kidney disease, dialysis and kidney transplantation, while this website focuses on making complex kidney information easier for patients to understand.
- Kidney disease and CKD
- Dialysis and kidney replacement therapies
- Kidney transplantation
- Electrolyte and acid-base disorders
Common Kidney Questions
More patient-friendly answers will be added as the site grows.
What does a high creatinine mean?
Creatinine is one of the most commonly used markers of kidney function, but the meaning depends on the whole clinical picture.
What is eGFR?
eGFR is an estimate of how well the kidneys are filtering blood. It is interpreted along with other findings.
When is dialysis needed?
Dialysis is considered when kidney failure or certain complications can no longer be adequately managed with other treatment.
Looking for Dr. Sagar Gupta in Faridabad?
Asian Institute of Medical Sciences, Sector 21 A, Faridabad · Mon–Sat, 11 AM–4 PM