Infection Control with Needles Reina Ligeralde DEH 13
- Slides: 14
Infection Control with Needles Reina Ligeralde DEH 13 Fall 2007
Guidelines for Infection Control in Dental Health-Care Settings l Percutaneous injuries among dental health-care personnel usually ¡ Occur outside the patient's mouth ¡ Are caused by syringe needles, burs, laboratory knives, and other sharp instruments ¡ Involve limited amounts of blood
Needle Stick Injury Facts l Estimated 600, 000 -800, 000 needle stick injuries occur annually involving contaminated needles l Others estimate that a needle stick injury is reported every 30 seconds over 1 million such cases per year l Resulting diseases: hepatitis, AIDS, diphtheria, typhus, herpes, malaria, tuberculosis, spotted fever, syphilis, gonorrhea
Health Care Workers 18, 000 are infected with hepatitis, HIV, and other blood-borne diseases Ø Ø Annually, 12, 000 healthcare workers contract hepatitis Ø Up to 300 of them die Ø 86% of all occupationally related infectious disease as a result of an accidental needle stick transmissions result from accidental needle sticks Ø CDC estimates 62 -88% of sharps injuries can potentially be prevented by the use of safer medical devices
Methods to Reduce the Risk of Blood Contacts l Use of standard precautions l Use of devices with features engineered to prevent sharps injuries l Modifications of work practices
Standard Precautions l Use of PPEs l Other protective equipment ¡ e. g. finger guards while suturing
Engineering Controls l Often incorporate safer designs of instruments and devices ¡ e. g. self-sheathing anesthetic needles
Self-Sheathing Safety Needle A. Syringe with protective sheath over the needle B. As the injection is made, the sheath slides back. C. After injection, the sheath returns to cover the needle and protect the clinician during disposal.
Traditional Injection System vs. Safer Injection Systems l A. Before use l B. After use
Work-Practice Controls l Involve aspirating anesthetic syringes l Entail used needles never manipulated by using both hands l Include used needles never directed toward any part of the body
More Work-Practice Controls Should be employed for recapping needles between uses and before disposal: l ¡ A one-handed scoop technique ¡ A mechanical device designed for holding the needle cap to facilitate one -handed recapping
Even More Work-Practice Controls l Never bend, break, or shear needles before disposal. l Avoid passing a syringe with an unsheathed needle. l Recap needles before attempting to remove them from nondisposable aspirating syringes.
Work-Practice Controls …Last but not Least l Dispose syringes and needles in appropriate containers that are: ¡ Closable ¡ Leakproof ¡ Puncture-resistant ¡ Located as close as feasible to where the items were used
References l http: //www. cdc. gov/mmw. R/preview/mmwrhtml/rr 5217 a 1. htm l http: //www. needle-stick-syringe-injury. com/pgs/needlestick-facts. html l Miller, C. H. , & Palenik, C. J. (2005). Infection control & management of hazardous materials for the dental team (3 rd ed. ). St. Louis: Elsevier Mosby. l Wilkins, E. M. (2005). Clinical practice of the dental hygienist (9 th ed. ). Baltimore: Lippincott Williams & Wilkins.
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