## **Core Concept**
The question assesses knowledge of potential long-term complications associated with live kidney donors. Live kidney donation is a well-established procedure for treating end-stage renal disease, but it carries potential risks and complications, both short-term and long-term. Understanding these complications is crucial for informed consent and post-donation care.

## **Why the Correct Answer is Right**
The correct answer, **D. Chronic kidney disease**, is right because live kidney donors are at risk of developing chronic kidney disease (CKD) over time. This risk is due to the reduction in nephron mass, which can lead to hyperfiltration and hypertrophy of the remaining nephrons. While the risk is generally considered low, especially with careful donor selection, it is a recognized long-term complication. Other potential long-term complications include hypertension and proteinuria.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is not provided, but typically, incorrect options might include conditions not directly related to the known complications of live kidney donation.
- **Option B:** Similarly, without the specific content of Option B, it's challenging to provide a detailed explanation, but it would likely represent a condition not commonly associated with long-term risks of live kidney donation.
- **Option C:** Again, without specifics, it's difficult to address directly, but it would presumably be another incorrect choice representing a condition not typically categorized under long-term complications of live kidney donation.

## **Clinical Pearl / High-Yield Fact**
A critical point to remember is that live kidney donors are carefully screened to minimize risks. Despite this, long-term follow-up is essential to monitor for potential complications such as hypertension, proteinuria, and CKD. The risk of end-stage renal disease in live donors is low but not zero, emphasizing the importance of long-term medical follow-up.

## **Correct Answer: D. Chronic kidney disease**