Hypercoagulation in nephrotic syndrome is caused by-
**Core Concept**
Hypercoagulation in nephrotic syndrome is a complex phenomenon involving multiple factors that lead to an increased risk of thrombotic events. This is a result of the loss of anticoagulant proteins in the urine, particularly antithrombin III and protein C, which normally inhibit blood clotting.
**Why the Correct Answer is Right**
The loss of anticoagulant proteins in the urine is a key factor in the development of hypercoagulation in nephrotic syndrome. Antithrombin III, a protein that inhibits thrombin and other clotting factors, is significantly decreased in patients with nephrotic syndrome, leading to an increased risk of thrombosis. Additionally, the decreased levels of protein C, another anticoagulant protein, further contribute to the hypercoagulable state. The increased levels of clotting factors, such as factor VIII and von Willebrand factor, also play a role in the development of hypercoagulation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the underlying mechanism of hypercoagulation in nephrotic syndrome.
**Option B:** This option is incorrect because it is not a direct cause of hypercoagulation in nephrotic syndrome.
**Option C:** This option is incorrect because it is not a primary factor in the development of hypercoagulation in nephrotic syndrome.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that patients with nephrotic syndrome are at an increased risk of thrombotic events, and therefore, they should be monitored closely for signs of thrombosis and anticoagulated as necessary.
**Correct Answer:** C.