When a person is suffering from poor renal absorption which one of the following factor will not help in maintenance of blood volume ?

Options

A. Decreased glomerular filtration
B. Increased ADH secretion
C. Decreased arterial pressure in kidney
D. Increased arterial pressure in kidney

Answer

To solve the question regarding which factor will not help in maintaining blood volume when a person is suffering from poor renal absorption, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: Recognize that poor renal absorption implies that the kidneys are not effectively reabsorbing water and solutes, which can lead to increased urine output and potential dehydration.

2. **Evaluate the Options**:
- **Option 1: Decreased Glomerular Filtration**: A decrease in glomerular filtration rate (GFR) means less fluid is filtered out of the blood into the urine. This would help maintain blood volume because less fluid is being lost.
- **Option 2: Increased ADH Secretion**: Antidiuretic hormone (ADH) promotes water reabsorption in the kidneys. Increased secretion of ADH would lead to less urine production and help maintain blood volume.
- **Option 3: Decreased Atrial Pressure on the Kidney**: Lower atrial pressure can lead to reduced blood flow to the kidneys, which may decrease urine output and help maintain blood volume.
- **Option 4: Increased Atrial Pressure in the Kidney**: An increase in atrial pressure can lead to increased filtration and urine production, which would not help in maintaining blood volume.

3. **Identify the Correct Answer**: From the evaluation, we can conclude that **increased atrial pressure in the kidney** is the factor that will not help in maintaining blood volume, as it would lead to increased urine output.

### Final Answer:
The factor that will not help in maintaining blood volume when a person is suffering from poor renal absorption is **increased atrial pressure in the kidney**.

---