Typically, when we consider a patient might have hypoglycemia, we follow the standard diagnostic procedures. First, we measure the patient's blood sugar level; if it is below 2.8 mmol/L, there is a high likelihood of hypoglycemia. Symptoms may include palpitations, dizziness, pale complexion, lack of concentration, lethargy, or even coma. Immediate action would involve giving the patient oral glucose solution or administrating glucose intravenously, followed by monitoring the patient’s clinical symptoms and blood sugar levels. If the patient's condition significantly improves after glucose provision, we can diagnose them with hypoglycemia. This is also a critical emergency procedure for hypoglycemia, which entails timely glucose supplementation. If the patient has recurrent hypoglycemia episodes, further detailed examinations should be conducted.