What are the steps for mixing regular insulin and NPH insulin? ex: 5 units of regular and 10 units of NPH insulin.
1. put 10 units of air in NPH vile, then pull out.
2. Then, put 5 units of air in regular vile, then draw out 5 units of regular from vile.
3. Then, draw 10 units of NPH in same syringe so that the marker is at 15 units.