Nephrotic syndrome classically presents with which combination of findings?

• A. Edema
• B. Edema, heavy proteinuria (>3.5 g/day), hypoalbuminemia, and hyperlipidemia.
• C. Hematuria and RBC casts
• D. Hypokalemia and metabolic acidosis

Answer: (B)

Nephrotic syndrome occurs when a glomerular barrier defect lets large amounts of protein leak into the urine, triggering a cascade of changes. The defining pattern includes heavy proteinuria (exceeding 3.5 g/day), which lowers serum albumin (hypoalbuminemia) and reduces plasma oncotic pressure, causing edema. The liver responds to hypoalbuminemia by producing more lipids, leading to hyperlipidemia. So the classic presentation is edema with heavy proteinuria, hypoalbuminemia, and hyperlipidemia.

The other findings point to different processes: hematuria with RBC casts suggests nephritic syndrome (inflammation of the glomerulus), while hypokalemia with metabolic acidosis isn’t characteristic of nephrotic syndrome and usually reflects other renal or systemic disturbances.