Abstract: Incidence of Phlebitis in association with the use of I.V. Infusions was studied. Patients in the I.C.U. with peripheral I.V. lines were studied over a 2.5 week period, a form being completed by the staff. The study established a 20% incidence of infusion phlebitis. The care and observations of intravenous therapy is a nursing responsibility requiring constant vigilance to detect early any complication that may arise