**Question:** All are risk factors for the development of surgery associated chronic kidney disease, EXCEPT:

A. Advanced age
B. Hypertension
C. Diabetes mellitus
D. Glomerulonephritis

**Core Concept:**

Chronic kidney disease (CKD) is a condition characterized by long-term damage to the kidneys, resulting in reduced kidney function. Surgery-associated CKD is a subtype of CKD that occurs due to temporary or permanent kidney injury following surgery. Understanding risk factors can help identify patients at higher risk and implement preventive measures. In this context, risk factors are conditions or circumstances that increase the likelihood of developing CKD after surgery.

**Why the Correct Answer is Right:**

The correct answer is represented by option **D** - Glomerulonephritis. Glomerulonephritis is an inflammation of the glomeruli, the tiny blood vessels in the kidneys that filter waste products from the blood. Although glomerulonephritis can cause kidney damage and lead to CKD, it is not an exception to the risk factors for surgery-associated CKD. Instead, it is a type of CKD itself and not a risk factor for surgery-associated CKD.

**Why Each Wrong Option is Incorrect:**

A. **Advanced age**: Age is a significant risk factor for surgery-associated CKD. Older individuals are more prone to develop complications and have a weaker renal reserve capacity, increasing the likelihood of CKD post-surgery.

B. **Hypertension**: Hypertension is another critical risk factor for surgery-associated CKD. High blood pressure can lead to increased intraglomerular pressure, causing renal injury and subsequent CKD.

C. **Diabetes mellitus**: Diabetes mellitus is a critical risk factor for surgery-associated CKD. Persistent high blood sugar levels can cause damage to the blood vessels and glomeruli, increasing the risk of CKD after surgery.

In summary, the correct answer, **D** - Glomerulonephritis, is not an exception to the risk factors for surgery-associated CKD but is a type of CKD itself. The other options, including advanced age, hypertension, and diabetes mellitus, are recognized risk factors for developing surgery-associated CKD.