Decreased level of ADH results in the prodction of

Options

A. isotonic urine
B. hypertonic urine
C. hypotonic urine
D. none of these

Answer

To solve the question regarding the effect of decreased levels of ADH (Antidiuretic Hormone) on urine production, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of ADH**:
- ADH is a hormone that regulates water reabsorption in the kidneys. It acts primarily on the collecting ducts of the nephron, making them more permeable to water.

**Hint**: Remember that ADH helps the body retain water by making kidney tubules more permeable.

2. **Identify the Effect of Decreased ADH**:
- When the levels of ADH decrease, the collecting ducts become less permeable to water. This means that less water is reabsorbed back into the bloodstream.

**Hint**: Think about what happens when water cannot be reabsorbed – it stays in the urine.

3. **Determine the Concentration of Urine**:
- With less water being reabsorbed, the urine that is produced will have a higher water content and lower solute concentration. This results in urine that is more dilute.

**Hint**: Consider the definitions of isotonic, hypertonic, and hypotonic. Which one describes urine with more water and fewer solutes?

4. **Conclude the Type of Urine Produced**:
- Since the urine is more dilute due to the decreased reabsorption of water, it is classified as hypotonic urine.

**Hint**: Recall that hypotonic urine means it has a lower concentration of solutes compared to the blood.

### Final Answer:
Decreased levels of ADH result in the production of **hypotonic urine**.