## **Core Concept**
Hematuria of glomerular origin typically presents with specific characteristics in the urine due to the nature of the bleeding site. Glomerular hematuria is associated with the presence of red blood cells (RBCs) that have passed through the glomerular filtration barrier, leading to certain distinctive features.

## **Why the Correct Answer is Right**
The correct answer can be deduced by understanding what characterizes glomerular hematuria. This type of hematuria is typically associated with:
- **Dysmorphic red blood cells (RBCs)**: These are RBCs that have an irregular shape due to their passage through the glomerular basement membrane.
- **Red blood cell casts**: These are cylindrical structures composed of RBCs that form in the renal tubules and are indicative of bleeding within the nephron.
- **Proteinuria**: The presence of protein in the urine, often in small amounts, can accompany glomerular hematuria due to the damage to the glomerular filtration barrier.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is not provided, but typically, the presence of dysmorphic RBCs, RBC casts, and proteinuria are features of glomerular hematuria.
- **Option B:** Similarly, this option is missing, but if it mentioned any of the characteristic features (dysmorphic RBCs, RBC casts, proteinuria), it would be incorrect to say it's not a feature.
- **Option C:** Without the specific details, if this option suggested a feature not typical of glomerular hematuria, it would be incorrect based on that.
- **Option D:**
## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that **the presence of RBC casts is highly indicative of glomerular or nephritic causes of hematuria**. This finding helps differentiate glomerular hematuria from lower urinary tract bleeding, where RBCs are typically isomorphic and without casts.

## **Correct Answer:** . **Hematocrit**