Rationale, Rules, and Reg., Barriers, Surface and Equipment Asepsis, Waterline Asepsis
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Created by:
lchoffman1987 on September 9, 2011
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41 terms
Terms | Definitions |
|---|---|
 How can cross-contamination happen from patient to dental team?(3 ways) | Direct contact, Droplet infection, indirect contact |
| How can dental team to patient cross-contamination happen? | It's rare, by not following aseptic tech. |
| How can cross-contamination happen from patient to patient? | Using dirty instruments from one patient on another patient. |
| T/F dental impressions do not have to be disinfected before being sent out, but must be disinfected apon arrival. | False, they must be disinfected before they're sent out and apon arrival. |
| What are the factors that determine if infectious disease will develop? | Virulence-pathogenic properties of a microorganism, Dose- # of microbes, Resistance- the body's defense mech. |
| What are some ways to reduce the dose of a microorganism? | Rubber dam, HVE, preprocedure mouthrinse, handwashing, surface precleaning and disinfection, barriers, PPE, instrument sterilization, and management of infectious waste |
| Give some examples of individuals who give recommendations. | CDC, ADA, OSAP |
| Give examples of groups who give regulations. | State and local government, FDA,EPA, and OSHA |
| What does the FDA regulate? | Manufacturing and labeling of medical devices . |
| What does the EPA regulate? | Regulates medical waste after it leaves the dental office |
| Who protects workers from phy. Chem. And infectious hazards in the workplace? | OSHA |
| Name the two types of microorganims present on hands. | Resident and transient |
| What is the difference b/t resident and transient microbes on hands? | Resident microbes colonize on the skin and become permanent residents, can't be completely removed, but #'s can be reduced. Transient microbes contaminate hands during touching, do not colonize, and can be completely removed by routine handwashing. |
| Name common antimicrobial agents used in handwashing products. | Chlorhexidine digluconate(CHG), Providone iodine(PI), Para-Chlormetaxylenol(PCMX) and Triclosan(TLS). |
| T/F contaminated clothing must be taken home to be laundered. | False, It's the responsibility of the employer to launder contaminated clothing |
| T/F Skin may look intact but still can allow microorganisms to enter the body. | True |
| Herpes Whitlow effects what area of the body? | Fingernails |
| T/F Blood will not remain under fingernails for several days, even after handwashing. | False, Blood can remain under nails. |
| What kind of gloves must be wore when cleaning the operatory and during instrument processing. | Nitrile rubber gloves. |
| How long does it take for symptoms of an immediate hypersensitivity to latex to appear. | With in 20 mins. of exposure |
| What are the three Spaulding classification of inanimate objects? Give examples of each. | Critical-penetrates oral mucous membranes. Ex. Explorer Semi-critical- Touches, not penetrates tissues. Ex. Mirror Non-critical- does not touch oral tissues. Ex. View box, hoses. |
| What is the purpose of cleaning a surface before disinfecting it? | Reduces microbes, and removes bioburden |
| What are some EPA approved disinfectants? | Iodophors, Synthetic phenols, chlorine compounds |
| What are the different types of antimicrobial agents? | Sterilant/high-level disinfectant Intermediate-level disinfectant Low-level disinfectant |
| What type of antimicrobial agent should be use on the floor? | Low-level disinfectant |
| What type of antimicrobial agent should be used for surface disinfection in dentistry? | Intermedaite-level disinfectant |
| What antimicrobial agent is not tuberculocidal? | Quaternary ammonium compound. |
| What type of antimicrobial agents are used on heat sensitive items by submerging them for a long period of time? | Sterilant/high-level disinfectant. |
| Legionella can cause what type of disease in susceptible persons? | Pneumonia |
| Besides Legionella, what other two bacteria that may be present in dental unit water are of the most concern in causing infections in compromised persons? | Pseudomonas and mycobacterium |
| What is the maximum acceptable level of bacteria in dental unit water as recommeded by the CDC? | 500CFU/mL |
| What role does dental water line biofilm play in the microbial contamination of dental unit water? | Biofilm sheds bacteria into the water, causing increased levels of bacteria in the outgoing water. |
| What type of water should be used to irrigate during oral surigal procedures? | Sterile water |
| The level of microbes in water coming out of an unmodified dental unit is almost always: | Higher than drinking water |
| When does the CDC recommend that dental unit water lines with attached handpiece should be flushed? | Between every patient for 20-30 seconds. |
| Potable water is the same as: | Drinking water. |
| What can attack the biofilm in waterlines? | Antimicrobial agents that are added to the water. |
| Water exiting the dental unit may exceed how many CFU/mL? | 100,000CFU/mL |
| What microorganism exists in soil and natural water, is opportunistic, and can cause UTI's, wound infections, pneumonia, septicemia in burn patients and is resistant to chem. disinfection. | Psuedomonas |
| What microbe causes legionnaires' disease, and transmitted by inhalation of contaminated water? | Legionella |
| What is a Boil water notice? What should you do? | Issued when community water is contaminated. You should not used tap water for hand washing, use alcohol hand rub when hands are not visibly soiled. Lines must be flushed and disinfected prior to reuse. |
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