STERILE SITE ASSESSMENT & CLEANING: Complete visual inspection of the insertion site for signs of phlebitis, erythema, edema, or purulent discharge, followed by rigorous chlorhexidine antiseptic disinfection.

TRANSPARENT ANTIMICROBIAL DRESSING CHANGE: Application of sterile, transparent semipermeable polyurethane dressings with sutureless securement devices (Statlock) or chlorhexidine-impregnated sponge pads to prevent dislodgement and line contamination.

HEPARIN & SALINE FLUSH PROTOCOL: Periodic flushing of catheter lumens using the push-pause technique with preservative-free saline and dilute heparin solution to maintain lumen patency and prevent intraluminal thrombus formation.

NEEDLELESS CONNECTOR (CAP) REPLACEMENT: Aseptic exchange of positive-pressure or neutral infusion caps/bungs at scheduled intervals to eliminate microbial colonization pathways.

BLOOD SAMPLING & INFUSION ASSISTANCE: Safe venous blood withdrawal through designated lumens and management of physician-prescribed intravenous antibiotic or total parenteral nutrition (TPN) connections.