CDC ppt Flashcards
What are the 4 modes of transmission?
1.Direct contact with blood or body fluids 2.Indirect contact with a contaminated instrument or surface 3.Contact of mucosa of the eyes, nose, or mouth with droplets or spatter4.Inhalation of airborne microorganisms
Integrate and expand Universal Precautions to include organisms spread by blood and, also body fluids, secretions, and excretions except sweat, whether or not they contain blood.
STANDARD Precautions
Rank the three potential routes of transmission of blood born pathogens in order of frequency/importance..
- Pt–>DHCP 2.DHCP–>Patient 3.Patient–>Patient
Which blood born pathogen has the highest risk? Lowest?
HBV highest (22-31%)…HIV lowest (0.3%)
Lack of documented transmissions of HBV since 1987 may reflect increased use of ______ and ______.
gloves and vaccine
Prevalence of _____ infection among dentists similar to that of general population (~ 1%-2%).
HCV
What are the BIG 3 Exposure Prevention Strategies?
1.Engineering Controls 2.Work-Practice Controls 3.Administrative Controls
Isolate or remove the hazard…Examples: Sharps container, Medical devices with injury protection features (e.g., self-sheathing needles)
ENGINEERING control
Change the manner of performing tasks….Examples include: Using instruments instead of fingers to retract or palpate tissue, One-handed needle recapping
Work Practice Control
Policies, procedures, and enforcement measures…. Placement in the hierarchy varies by the problem being addressed, Placed before engineering controls for airborne precautions (e.g., TB)
Administrative Control
______ are the most common mode of
pathogen transmission
Hands
________: Washing hands with plain soap and water
Handwashing
________: Washing hands with water and soap or other detergents containing an antiseptic agent
AntiSeptic handwash
________: Rubbing hands with an alcohol-containing preparation.
Alcohol-based hand rub
________: Handwashing with an antiseptic soap or an alcohol-based handrub before operations by surgical personnel
Surgical antisepsis
Efficacy of Hand Hygiene Preparations in Reduction of Bacteria: Good?…Better?….Best??
Good: Plain Soap….Better:Antimicrobial soap….Best:Alcohol Based Hand rub
What are three limitations to Alcohol-based preparations?
1.cant use if hands are visibly soiled…2.store away from high temps 3. “build up”
PPE is a major component of ______ precautions.
Standard
Are gloves a substitute for hand washing??
NO :)
Type IV delayed hypersensitivity, May result from allergy to chemicals used in glove manufacturing
Allergic Contact Dermatitis
Not an allergy, Dry, itchy, irritated areas
Irritant Contact Dermatitis
Do not use sterilant/high-level disinfectants on _______ surfaces
environmental (clinical OR housekeeping!)
What do you used to clean clinical contact surfaces?
low to intermediate level disinfectant (TBcidal)
What type of DUWL technology does ASDOH use?
Combination! (0-5 CFU/mL) BOOM
What do you use for irrigating solutions?
sterile water or saline
What did they culture out of LASER plume?
HPV!!
______ advise patients to close their lips tightly around the tip of the saliva ejector
DO NOT!!! WhATTT??
What do you wear when doing X rays?
Gloves and Mask
Syringe needles, prophylaxis cups, and plastic orthodontic brackets are examples of?
single-use (disposable) devises
What reduces number of microorganisms in aerosols/spatter, decrease the number of microorganisms introduced into the bloodstream BUT unresolved issue–no evidence that infections are prevented…?
Pre-procedural mouth rinses
Provide a safe working, environment, Reduce health care-associated infection, Reduce occupational exposures

Infection Control Programs
