What blood glucose thresholds indicate considering treatment in glycemic emergencies?

• A. BGL between 80 and 120 mg/dL.
• B. BGL < 60 mg/dL only.
• C. BGL > 250 mg/dL only.
• D. BGL < 60 mg/dL or BGL > 250 mg/dL.

Answer: (D)

In glycemic emergencies, the decision to treat hinges on whether glucose levels are dangerously low or dangerously high. When blood glucose falls below about 60 mg/dL, the brain isn’t getting enough fuel, leading to symptoms like confusion, weakness, or unconsciousness; this is a clear trigger to intervene with glucose administration or similar measures. On the other end, when glucose rises above about 250 mg/dL, there’s a high risk of hyperglycemic crises such as diabetic ketoacidosis or hyperosmolar states, accompanied by dehydration and electrolyte imbalances, which also requires active treatment to correct fluids, electrolytes, and insulin as needed. Because emergencies can arise from either extreme, the correct approach is to consider treatment if the blood glucose is either below 60 mg/dL or above 250 mg/dL. The other options only reflect one end of the spectrum or refer to normal ranges, which don’t indicate an emergency.