 Welcome to Nursing School. Explain in this video on the therapeutic index that relates to medication and how the body is metabolizing it. Please also make sure that you check out the other videos about steady-state, peak and trough therapeutic window as well as a medication half-life so that you know how all these terms relate to one another. So the therapeutic index is closely related to the therapeutic window and it compares the amount of medication that causes either a therapeutic or desired effect or a toxic or non-desired effect. And if we have a large index a large therapeutic index that means that there's a large therapeutic window. If the index is small it means that we have a small therapeutic window meaning that we have to be extra cautious in checking the patient's peak and trough and check their kidney function and monitor them very closely for side effects to make sure that they don't have any harmful effects from the medication. Thanks for watching this video. Please make sure to check out the other videos that I mentioned earlier. I'll put the links in the description below. Thanks for watching and see you soon.