CLABSI Prevention

Central line infections kill roughly 1 in 4 affected patients, yet most CLABSIs are preventable with a nursing-driven bundle. Knowing each element — and when the line should come out — is high-yield NCLEX territory.

A central line–associated bloodstream infection (CLABSI) is a laboratory-confirmed bloodstream infection in a patient with a central venous catheter in place for more than 48 hours, where the infection is not related to another site. Prevention centers on the evidence-based central line bundle. During insertion, the nurse enforces hand hygiene and maximum sterile barrier precautions: cap, mask, sterile gown, sterile gloves, and a full-body drape — not a small fenestrated drape. The insertion site is prepped with chlorhexidine gluconate (CHG) greater than 0.5% in alcohol, allowed to dry completely before the procedure begins. Post-insertion, the nurse performs daily assessment: Is the line still needed? This daily necessity review is the single most powerful prevention measure — removing the line as soon as it is no longer essential eliminates ongoing risk. Dressing changes use CHG-impregnated sponge dressings (e.g., BioPatch) and are performed every 7 days for transparent dressings or every 2 days for gauze, and immediately if the dressing becomes damp, loosened, or visibly soiled. Tubing for continuous infusions is changed every 96 hours (and no longer than every 7 days), except blood products and lipids (every 24 hours). Needleless connectors are scrubbed with alcohol for at least 15 seconds — the 'scrub the hub' technique — before each access.

Key Distinctions

Don't confuse CLABSI (central line present ≥48 hours, no other infection source) with a peripheral IV site infection — CLABSI is defined exclusively for central venous access. Students mix up CHG skin prep (for CLABSI prevention) with povidone-iodine — CHG with alcohol is the current standard for central lines. Maximum sterile barrier means a full-body drape covering the patient, not the small drapes used for peripheral procedures.

Clinical Pearl

'Scrub, drape, ask daily.' Scrub the hub 15 seconds before every access, enforce full-body draping at insertion, and ask every day: Does this line still need to be here?