A tumour in the adrenal zona glomerulosa can cause hyper secretion of hormones produced in that region. Which of the following might you expect to find in a patient with such a tumour ?

Options

A. Increased blood sodium levels
B. Increased blood glucose levels
C. Decreased blood calcium levels
D. Increased dehydration

Answer

To solve the question regarding the effects of a tumor in the adrenal zona glomerulosa, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Location and Function of the Zona Glomerulosa**:
- The adrenal glands are located on top of each kidney and consist of two main parts: the cortex and the medulla. The outer layer of the adrenal cortex is called the zona glomerulosa.

2. **Understand the Hormones Produced**:
- The zona glomerulosa primarily produces the hormone aldosterone, which is a mineralocorticoid.

3. **Function of Aldosterone**:
- Aldosterone plays a crucial role in regulating sodium and water balance in the body. It promotes the reabsorption of sodium ions in the kidneys, which in turn leads to water retention.

4. **Effects of Hypersecretion of Aldosterone**:
- If there is a tumor in the zona glomerulosa causing hypersecretion of aldosterone, this would lead to increased reabsorption of sodium ions in the renal tubules.

5. **Expected Changes in the Patient**:
- With increased sodium reabsorption, we would expect to see elevated sodium levels in the blood. This condition could lead to increased blood volume and potentially increased blood pressure.

6. **Evaluate Other Options**:
- Increased blood glucose levels are primarily influenced by hormones like glucagon and cortisol, not aldosterone.
- Decreased blood calcium levels are regulated by calcitonin and parathyroid hormone, not aldosterone.
- Increased hydration or dehydration would depend on various factors, but with increased sodium reabsorption, dehydration could occur if water is not adequately retained.

7. **Conclusion**:
- The most likely finding in a patient with a tumor in the adrenal zona glomerulosa causing hypersecretion of aldosterone would be **increased sodium levels** in the blood.

### Final Answer:
- **Increased sodium level**.