LPN stands for a licensed practical nurse. Most states use that title, though some states, such as California and Texas, refer to the position as an LVN or licensed vocational nurse. An LPN in a doctor’s office works under the supervision of the primary registered nurse and the physician. In this role, your job duties vary, depending on the type of practice and the size of your staff. But general responsibilities include documenting medical histories, measuring patient weight, temperature, and blood pressure, and administering vaccinations. Specialist offices may have you setting casts, changing wounds, and other duties beyond taking vital signs. You may also perform some administrative tasks, such as setting appointments and filing medical records.