It's normal for blood glucose levels to fluctuate throughout the day, especially in response to various factors such as food intake, physical activity, stress, and hormone levels. However, a decrease of 4 points in 10 minutes is generally not significant and can be within the normal range of variation for blood glucose measurements.
Blood glucose levels can change quickly, and small fluctuations like this are common, especially during the early morning when hormones like cortisol may cause some changes in blood sugar levels. In the absence of any symptoms or concerns, a minor drop like this is likely not a cause for worry.
Regarding prediabetes, it's essential to consider your blood glucose levels over time and in different circumstances to get a clearer picture. Prediabetes is a condition where blood sugar levels are higher than normal but not yet high enough to be classified as diabetes. The diagnosis is usually made based on several blood glucose tests taken on different occasions.
If you have concerns about your blood glucose levels or suspect you might have prediabetes, it's best to consult with a healthcare professional. They can perform a comprehensive evaluation, consider your medical history, and conduct any necessary tests to determine if you are at risk for or already have prediabetes. Early detection and appropriate management can help prevent or delay the progression to type 2 diabetes. Additionally, they can provide personalized advice on lifestyle changes, such as diet and exercise, to help maintain healthy blood glucose levels.