What is the primary action to take for a conscious person showing signs of hypoglycemia?

The primary action to take for a conscious person showing signs of hypoglycemia is to provide carbohydrates. When blood sugar levels drop, the body needs a boost of glucose to raise those levels back to a safe range. Carbohydrates are the most immediate source of glucose, and they can quickly alleviate the symptoms of hypoglycemia, such as shakiness, confusion, sweating, and weakness.

Giving carbohydrates can come in various forms, such as glucose tablets, fruit juice, or sugary snacks. This is effective because once consumed, carbohydrates are rapidly absorbed into the bloodstream, leading to a quick increase in blood sugar levels. It's crucial to allow the person to consume carbohydrates while ensuring they remain conscious and able to swallow, as this approach is safe and straightforward in situations where immediate action is necessary to prevent more severe complications.

Other options like administering glucagon would be appropriate if the individual were unconscious or unable to swallow, and encouraging exercise is not related to treating hypoglycemia. Offering a blood sample does not address the immediate need for treatment and can even delay necessary intervention. Thus, providing carbohydrates is the best and quickest way to manage a conscious person experiencing hypoglycemia.