To introduce the wire guides, being unnecessary to detach from the needle. The introduction of the wire guides must occur without resistance, to remove the metallic needle, keeping the wire guides inside of the vein, dilatao of the orifice of the skin and the vein with proper dilatador through the wire guides, rank of the definitive catheter through the wire guides and withdrawal of the same. The setting of the monofilamentado catheter with (nylon), following the specifications of the manufacturer, oclusivo Dressing on the place of the puno, Confirmation x-ray of the positioning of the catheter. They is esteem that half of the patients admitted in hospital receives some type of therapy, wants either intravenosa or invasive procedures, being that the presence of infections in deep the venoso system represents a potential fort of infectious complications (3). I diagnosis it of the infections related to the catheter and difficult because nor all the patients present the signals of inflammation in the place of exit of the catheter and when the signals are gifts, the infection alone and after confirmed the withdrawal of the harvested catheter the tip of the catheter and three sample of blood sent for laboratory. Basing us laboratoriais and clinical criteria It was considered septicemia when it had the same at least two positive cultures for microorganism in the blood collected through puno of the catheter and peripheral vein, associate to the presence of suggestive sintomatologia of sistmica infection, as persistent fever and tremors (3). Justification and objective the central venoso catheter and an instrument I medicate very used in the monitoramento of patients in state I criticize.