A tumour in the adrenal zona glomerulosa can cause hyper secrection of hormones producted in that region.Which of the following might you expect to find in a patient with such a tumour:
Increased blood sodium levels
Increased blood glucose levels
Decreased blood calcium levels
Increased dehydration

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 1: Understand the Function of the Adrenal Zona Glomerulosa
The adrenal zona glomerulosa is the outermost layer of the adrenal cortex and is primarily responsible for the production of the hormone aldosterone. Aldosterone plays a crucial role in regulating electrolyte balance, particularly sodium and potassium levels, as well as maintaining blood pressure.

**Hint:** Remember that the adrenal cortex has different zones, each producing different hormones.

### Step 2: Identify the Hormone Produced
Aldosterone is the key hormone produced in the zona glomerulosa. It promotes the reabsorption of sodium ions in the kidneys and the excretion of potassium ions. This process is essential for maintaining fluid balance and blood pressure.

**Hint:** Focus on the specific hormone produced in the zona glomerulosa and its primary functions.

### Step 3: Consider the Effects of Hypersecretion
If there is a tumor in the zona glomerulosa leading to hypersecretion of aldosterone, the immediate effect would be an increase in sodium reabsorption in the kidneys. This would result in higher sodium levels in the bloodstream.

**Hint:** Think about what happens when aldosterone levels increase—what does it do to sodium and potassium levels?

### Step 4: Analyze the Options Provided
Now, let's evaluate the options given in the question:
1. **Increased blood sodium levels**: This is likely, as hypersecretion of aldosterone would lead to increased sodium reabsorption.
2. **Increased blood glucose levels**: This is not directly related to aldosterone; it is more associated with hormones like cortisol or insulin.
3. **Decreased blood calcium levels**: Aldosterone does not have a direct effect on calcium levels.
4. **Increased dehydration**: While aldosterone helps retain water, increased sodium levels can lead to fluid retention rather than dehydration.

**Hint:** Consider how each option relates to the function of aldosterone and the effects of its increased secretion.

### Step 5: Conclusion
Based on the analysis, the most likely outcome of a tumor in the adrenal zona glomerulosa causing hypersecretion of aldosterone is **increased blood sodium levels**.

**Final Answer:** Increased blood sodium levels.