Does a registered nurse need an additional order to restart an intravenous line that is no longer patent?

A registered nurse does not need an additional order from an authorized health care practitioner to restart an intravenous line that is no longer patent. The nurse may want to consult with the authorized health care practitioner in situations when the nurse is unsure if the patient still requires an intravenous line or if the patient’s intravenous line is insufficient to support the therapy needed.