If you encounter a suspected diabetic coma, what action should you take?

In the situation of a suspected diabetic coma, administering glucose is the appropriate action because diabetic coma can result from severe hypoglycemia, where the blood sugar levels drop dangerously low. In such cases, the patient's body has insufficient glucose, which is essential for proper brain and body function. By providing glucose, you can quickly raise their blood sugar levels, potentially reversing the coma and preventing further complications.

The other choices are not suitable interventions for a suspected diabetic coma. Performing CPR is only necessary if the patient is unresponsive and not breathing; however, it does not specifically address low blood sugar. Measuring the patient's blood pressure is important in overall patient assessment but does not directly treat the cause of a diabetic coma. Encouraging exercise is inappropriate at this time, as physical activity would not address the immediate need for glucose and could worsen the patient's condition.