Kidney Health Glossary
Patient Education
Kidney Health Glossary
Plain-language explanations for medical terms used across this site. Click any term to read more on the related page.
✓ Medically Reviewed by Prof. (Dr.) Debabrata Mukherjee, MD, DM Nephrology — Last reviewed: 24 August 2026
Kidney Disease & Conditions
- Nephrology / Nephrologist — The medical specialty, and specialist doctor, focused on kidney health and disease.
- Chronic Kidney Disease (CKD) — Long-term, gradual loss of kidney function over time.
- Kidney Failure — When the kidneys can no longer filter waste and fluid from the blood adequately.
- Polycystic Kidney Disease (PKD) — A genetic disorder causing fluid-filled cysts to grow in the kidneys.
- Genetic Kidney Disease — Kidney conditions caused by inherited gene changes, passed down in families.
- Diabetic Kidney Disease — Kidney damage caused by long-term diabetes.
- Hypertension — High blood pressure, a major cause and complication of kidney disease.
- Edema — Swelling caused by excess fluid trapped in body tissues.
- Urinary Tract Infection (UTI) — An infection anywhere in the urinary system.
- Urinary Stones / Kidney Stones — Hard mineral deposits that form in the kidneys or urinary tract.
- Mineral Bone Disease (in CKD) — A complication where kidney disease disrupts calcium, phosphorus, and bone health.
- Hyperkalemia — Higher-than-normal potassium levels in the blood, which can affect the heart.
- Kidney Cancer / RCC — Cancer that begins in the cells of the kidney.
- Prostate Concerns — General term for prostate gland issues, sometimes overlapping with urinary symptoms.
- Pregnancy with Kidney Disease — Special guidance and monitoring needed when managing kidney disease during pregnancy.
- Acute Kidney Injury (AKI) — A sudden, often reversible drop in kidney function developing over hours to days.
- End-Stage Renal Disease (ESRD/ESRF) — The most advanced stage of chronic kidney disease, needing dialysis or transplant.
- Glomerulonephritis — Inflammation of the kidney’s tiny filtering units.
- Nephritis — A general term for inflammation of the kidney.
- Anaemia (in Kidney Disease) — A shortage of red blood cells common in kidney failure.
- Proteinuria — Excess protein in the urine, often an early sign of kidney damage.
- Reflux Nephropathy — Kidney damage from urine flowing backward toward the kidney.
- Uraemia — Buildup of waste products in the blood that makes a person feel unwell.
Dialysis & Vascular Access
- Dialysis — A treatment that filters waste and excess fluid from the blood when the kidneys can’t.
- Hemodialysis — Dialysis done by circulating blood through an external machine to clean it.
- Peritoneal Dialysis (CAPD) — A form of dialysis done at home using the lining of the abdomen as a natural filter.
- Online Hemodiafiltration (HDF) — An advanced form of dialysis combining two filtering methods.
- CRRT — A slow, continuous form of dialysis used for critically ill ICU patients.
- SLED — A gentler, extended dialysis session often used in ICU settings.
- SCUF — A dialysis-related technique used mainly to remove excess fluid.
- Dialysis Catheter — A tube inserted into a vein to allow blood access for dialysis.
- Tunneled Catheter / Permcath — A longer-term dialysis catheter placed under the skin.
- IJV & Femoral Lines — Emergency catheter access placed in the neck or groin vein.
- AV Fistula — A surgically created connection between an artery and vein for long-term dialysis access.
- AV Fistula Complications — Risks such as clotting, narrowing, infection, or aneurysm affecting a fistula.
- Access for Dialysis — The general term for connecting to a dialysis machine — fistula, graft, or catheter.
- Peritonitis — An infection of the abdominal lining, a risk for peritoneal dialysis patients.
- Ultrafiltration — The removal of excess fluid from the blood, naturally or during dialysis.
Kidney Transplant
- Kidney / Renal Transplant — Surgery to place a healthy donor kidney into a patient with kidney failure.
- Deceased Donor Transplant — A transplant using a kidney from a deceased donor.
- ABO Incompatible (ABOi) Transplant — A transplant between donor and recipient with different, normally incompatible blood groups.
- Swap Kidney Transplant — Two donor-recipient pairs exchange kidneys because their own donor isn’t a match.
- Desensitization — Treatment given before transplant to reduce antibody levels so a mismatched kidney can be accepted.
- HLA (Human Leukocyte Antigen) — Proteins on cells that the immune system uses to identify a match for transplant.
- Graft Rejection — When the immune system attacks and damages a transplanted kidney.
- Post-Transplant Care — Ongoing monitoring and treatment after a transplant to keep the new kidney healthy.
- Living Related Transplant — A kidney donated by a blood relative of the patient.
- Nephrectomy — Surgical removal of a kidney, relevant to living donor evaluation.
Diagnostics & Procedures
- Serum Creatinine — A blood test marker used to measure how well the kidneys are filtering waste.
- Kidney Biopsy (USG-Guided) — A procedure using ultrasound guidance to take a small kidney tissue sample.
- Diagnostic Renal Angiography / Angioplasty — An imaging procedure to examine and open narrowed blood vessels supplying the kidney.
- ECG (Electrocardiogram) — A test recording the heart’s electrical activity, used to detect hyperkalemia-related changes.
- eGFR — A calculated score, from a blood test, showing how well the kidneys are filtering waste.
This glossary is for general patient understanding and educational purposes only — it is not a substitute for advice from your doctor. Always consult Prof. (Dr.) Debabrata Mukherjee or your treating physician about your specific condition.