WoundSource Practice Accelerator: Biofilms and Wound Care

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Test your knowledge based on your learning from the materials provided in the WoundSource Practice Accelerator program on Biofilms and Wound Care.

1. Biofilms are found not only in wounds, but on medical devices such as prosthetic heart valves, orthopedic implants, intravascular catheters, and artificial hearts. *

1 point

True

False

2. Examples of biofilm include those adhered to rocks at the bottom of a stream, on the floors of showers and in sewage pipes, sometimes causing blockage and corrosion. Teeth with dental plaque also have biofilm, which can lead to the development of tooth decay and gum disease. *

1 point

True

False

3. Biofilm formation contributes to chronic inflammation, delayed healing and eschar formation. *

1 point

True

False

4. Biofilm is present over 60%-90% of chronic wounds and 6% of acute wounds. *

1 point

True

False

5. Biofilm life cycle has four parts: attachment, growth, maturation and detachment. *

1 point

True

False

6. Biofilm cannot become biocide tolerant within 12 hours. *

1 point

True

False

7. If disrupted or disturbed, biofilm can entirely reform in 24 hours. *

1 point

True

False

8. At least one-third of all chronic non-healing wounds contain biofilm. *

1 point

True

False

9. Biofilms are not resistant to biocides. *

1 point

True

False

10. Every species of microorganism is capable of making biofilms. *

1 point

True

False

11. Studies show that as many as 300 different species of bacterial can inhabit biofilm in dental plaque. *

1 point

True

False

12. Visually, biofilm is ____ and _____ due to the extracellular polymeric substance, and has a tenacious attachment to the wound bed. (Fill in the blank). *

1 point

dull and dry

shiny and slimy

moist and smooth

Required

13. How many pounds per square inch (psi) of pressure are recommended for debridement in order to adequately clean the wound bed yet protect fragile granulation tissue? *

1 point

Less than 4 psi

15-31 psi

4-15 psi

14. The importance of debridement is to remove biofilm, necrotic tissue, senescent or aberrant cells, all of which may harbor bacteria, increase the risk of infection, delay the healing process, impair macrophage function and physically splint the wound open. *

1 point

True

False

15.The Levine Quantitative Swab Technique for culturing a wound includes cleansing the wound with the following (select one). *

1 point

Potable (drinking) tap water

Normal saline solution

Surfactants

Lactated Ringer's Solution

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