Problem 14 - A Complete Resource Book in Chemistry for JEE Main

Question

Excess of \(\mathrm{Na}^{+}\)ions in human system causes (a) anaemia (b) high blood pressure (c) diabetes (d) low blood pressure

Step-by-Step Solution

Answer

(b) high blood pressure

Step 1: Identify the Role of Na+ Ions

Sodium ions (10) play a crucial role in maintaining the body's fluid balance, nerve function, and muscle contraction. An excess intake of sodium can disrupt this balance.

Step 2: Recognize the Health Consequences of Excess Sodium

When there is an excess of sodium ions in the blood, the body retains more water to dilute it. This results in increased blood volume, which causes blood pressure to rise.

Step 3: Determine Which Condition is Linked to High Blood Pressure

High blood pressure, also known as hypertension, is the direct result of increased blood volume due to excess sodium. It is important to understand this relationship when assessing health problems associated with sodium.

Step 4: Review the Given Options

The options provided are (a) anaemia, (b) high blood pressure, (c) diabetes, and (d) low blood pressure. Based on steps 1-3, we associate excess sodium more closely with high blood pressure.

Step 5: Select the Correct Answer

Excess sodium leads to increased blood pressure, which matches option (b). Therefore, the correct answer is (b) high blood pressure.

Key Concepts

Fluid Balance

Sodium ({Na}^{+}) plays a vital role in maintaining the balance of fluids in the body. This balance is essential for ensuring that our cells function properly. When sodium levels are just right, our body's fluids are balanced, allowing cells to perform necessary tasks. Here's how it works: Sodium helps regulate the amount of water in and around cells.

• It influences the balance between intracellular (inside cells) and extracellular (outside cells) fluids.
• Too much sodium can cause the body to retain water, as it tries to dilute excess sodium in the bloodstream.
• This excess fluid retention can lead to swelling or edema in parts of the body, such as legs and ankles.

Proper fluid balance is crucial for overall health, as imbalances can lead to issues like dehydration or fluid overload. It's important to keep sodium intake at recommended levels to maintain this balance and avoid health complications.

Nerve Function

Sodium is essential for proper nerve function, which is critical for communication between the brain and the rest of the body. Nerve cells, or neurons, rely on sodium ions ({Na}^{+}) to transmit signals effectively.

• Sodium helps generate electrical impulses in nerve cells.
• These impulses are crucial for transmitting signals that allow us to think, feel, and respond to our environment.
• When sodium levels are appropriate, nerve function remains smooth and precise.

An imbalance in sodium levels can disrupt nerve signaling, leading to various symptoms including numbness, tingling, or muscle weakness. Maintaining balanced sodium intake is essential for healthy nerve function and communication throughout the body.

High Blood Pressure

High blood pressure, or hypertension, is a common health condition that can be influenced by sodium intake. When there's too much sodium in the diet, the body may retain more fluid, which increases blood volume.

• This added volume creates more pressure against blood vessel walls, causing blood pressure to rise.
• High blood pressure can lead to serious health issues, including heart disease, stroke, or kidney problems.
• Sodium reduction is a key strategy to manage and lower the risk of developing high blood pressure.

It's important to be mindful of sodium consumption, as it is a controllable factor that significantly impacts blood pressure levels. Eating a balanced diet with moderate sodium levels supports cardiovascular health and overall well-being.