**Question:** In nephritic syndrome the following features indicate poor prognosis except -

A. Hematuria
B. Proteinuria
C. Hypertension
D. Acute kidney injury (AKI)

**Core Concept:** Nephritic syndrome is a clinical condition characterized by non-oliguric renal failure, characterized by proteinuria, hematuria, and hypertension. Poor prognosis is associated with AKI due to reduced glomerular filtration rate (GFR) and impaired renal perfusion.

**Why the Correct Answer is Right:** Among the options provided, hematuria (Option A), proteinuria (Option B), and hypertension (Option C) are characteristic features of nephritic syndrome. These are associated with poor prognosis due to their potential to lead to end-stage renal disease (ESRD) or cardiovascular complications.

**Why Each Wrong Option is Incorrect:**

A. Hematuria: Hematuria, or the presence of blood in the urine, indicates glomerular damage and is a key feature of nephritic syndrome. It is associated with poor prognosis due to the risk of ESRD and cardiovascular complications.

B. Proteinuria: Proteinuria, or the presence of protein in urine, is another key feature of nephritic syndrome. It is associated with poor prognosis due to the risk of ESRD and cardiovascular complications.

C. Hypertension: Although hypertension is a common feature of nephritic syndrome, it is not specifically responsible for poor prognosis. However, it is associated with cardiovascular complications and can contribute to overall poor prognosis if left unmanaged.

D. Acute kidney injury (AKI): AKI (Option D) is associated with reduced GFR and impaired renal perfusion, which leads to poor prognosis due to the risk of progression to chronic kidney disease (CKD) and ESRD.

**Clinical Pearl:** A key aspect of nephritic syndrome management is controlling hypertension and addressing proteinuria to mitigate the risk of ESRD and cardiovascular complications. While AKI and hematuria are not directly responsible for poor prognosis, early diagnosis and treatment are essential to prevent further renal damage and complications.