Final answer:
Insulin glargine (Lantus) can be administered subcutaneously at home or intravenously in the hospital, has a long duration of action, and should not be mixed with any other insulin.
Step-by-step explanation:
Insulin glargine (Lantus) can be administered subcutaneously at home or intravenously in the hospital if need be. It has a long duration of action, staying in your system for approximately 24 hours. However, the onset of action is not 15 minutes, as it actually takes several hours for glargine to begin working effectively.
Insulin glargine (Lantus) should not be mixed with any other insulin in the same syringe, as it can affect its stability and effectiveness. It is typically administered separately and should not be mixed with any other insulin preparations.