NETA Personal Trainer Practice Exam

For diabetics, what blood sugar level prohibits exercise?

1. Over 250 mg/dl with positive ketones

2. Over 200 mg/dl

3. Over 180 mg/dl without ketones

4. Over 300 mg/dl without ketones

The correct answer is: Over 300 mg/dl without ketones

In managing diabetes, particularly regarding exercise safety, specific blood sugar thresholds are crucial to consider. A blood glucose level over 300 mg/dl without ketones is significant because at this level, there is a heightened risk of complications during physical activity. When blood sugar exceeds this threshold, it often indicates that the body is unable to process glucose effectively, which can lead to dehydration and may increase the risk of developing hyperglycemia-related issues during and after exercise. Exercise can further elevate blood glucose levels in individuals experiencing extreme hyperglycemia, making it essential to avoid strenuous or prolonged physical activities under these conditions. Monitoring ketones is also important, as the presence of ketones indicates that the body is breaking down fat for energy due to a lack of insulin, which is a serious condition that often accompanies very high blood sugar levels. Engaging in exercise without properly assessing blood sugar and ketone levels at such elevated readings could lead to severe health consequences. The other options reflect varying levels of blood sugar where exercise may still be approached with caution, but they do not present the same immediate risks associated with a glucose level exceeding 300 mg/dl without ketones. Thus, to ensure safety, individuals with diabetes are advised to refrain from exercise at this elevated blood sugar