Blood glucose intervention depends on the level: Less than 70, Rule of 15; 71-199, No intervention; 200-249, 2 units of insulin lispro; 250-299, 4 units of insulin lispro; 300-349, 6 units of insulin lispro; 350-399, 8 units of insulin lispro; 400-449, 10 units of insulin lispro.