DIS100: Disinfection Practices for Intravenous Therapy
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The Chain of Infection Starts at the Surface
Most catheter-associated bloodstream infections are preventable. The organisms responsible almost always travel from a small number of predictable sources: the patient’s own skin flora, the clinician’s hands, the catheter hub and needleless connector, and contaminated equipment or surfaces. Disinfection is the set of practices that breaks the chain of infection at each of those points. When disinfection is performed consistently and correctly, the pathway from surface to bloodstream is closed; when a single step is skipped or rushed, the pathway reopens.
This module is organized around the four control points of an IV administration system: hands, skin, hub/connector, and environment. Each control point has its own agent, technique, and timing, and each depends on a principle that recurs throughout infection prevention: friction plus contact time plus complete drying equals disinfection. Shortcutting any of the three defeats all three.
Key Point Disinfection is not a single act but a chain of four: clean hands, antiseptic skin, a scrubbed hub, and a clean environment. A break at any link can result in a bloodstream infection, so every link is treated as essential.
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This preview is educational. Apply current facility policy, professional scope, and clinical supervision. Reading a preview does not issue a certificate or validate procedural competency.