Which is seen in nephrotic syndrome –
**Core Concept**
Nephrotic syndrome is characterized by severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. It represents a clinical syndrome that can be caused by various underlying renal pathologies, including minimal change disease, focal segmental glomerulosclerosis (FSGS), membranous nephropathy, and others.
**Why the Correct Answer is Right**
The hallmark of nephrotic syndrome is the loss of significant amounts of albumin and other proteins in the urine, leading to hypoalbuminemia. This results in decreased oncotic pressure in the blood vessels, causing fluid to shift into the interstitial space and leading to edema. The liver responds to the decreased oncotic pressure by increasing the production of lipids, resulting in hyperlipidemia. **Correct Answer:** A. Hyperlipidemia is a characteristic feature of nephrotic syndrome due to the liver's compensatory response to hypoalbuminemia.
**Why Each Wrong Option is Incorrect**
* **Option B:** Hyperkalemia is not a characteristic feature of nephrotic syndrome. It is more commonly associated with conditions that cause renal failure or tubular damage.
* **Option C:** Hypocalcemia is not typically seen in nephrotic syndrome. It is more commonly associated with conditions that cause vitamin D deficiency or increased PTH levels.
* **Option D:** Hypomagnesemia can be seen in nephrotic syndrome due to excessive loss in the urine, but it is not the most characteristic feature.
**Clinical Pearl / High-Yield Fact**
Nephrotic syndrome is characterized by a "triad" of proteinuria, hypoalbuminemia, and hyperlipidemia. Remember that the liver's compensatory response to hypoalbuminemia leads to hyperlipidemia, and the kidneys' failure to reabsorb proteins leads to proteinuria.
**Correct Answer:** A. Hyperlipidemia