This Nephrology Rapid Revision by Dr. G. Bhanu Prakash covers essential nephrology topics, including urine analysis, acute kidney injury, chronic kidney disease, nephrotic and nephritic syndromes, polycystic kidney disease, and renal tubular acidosis. Key concepts include proteinuria detection, urine dipstick limitations, and cast formations in various renal conditions. The discussion also explores electrolyte imbalances, acute vs. chronic kidney disease differentiation, and treatment approaches such as fluid management, diuretics, and dialysis indications. For polycystic kidney disease, genetic mutations, complications, and treatment options, including tolvaptan, are highlighted.