To the Editor: Removal of intravenous catheters by patients who are disoriented or combative has been an irritating and time-consuming problem at our institution and, we are sure, at many others. All the usual precautions of making a skin suture and wrapping the ends around and around the catheter before doubling the catheter and triple taping it to the extremity or chest are often not sufficient for patients who cannot control their motions or even those who must be frequently moved to different parts of the hospital for diagnostic procedures. It is not very difficult to slip the catheter through …. © 1974, Massachusetts Medical Society. All rights reserved.