ENVIRONMENT OF CARE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

ENVIRONMENT OF CARE UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. What is the direction of environmental surface cleaning
Answer:
Progress from the least soiled areas to the most soiled (patient zone)
From High surfaces to Low surfaces

Question:
2. What is the key to cleaning/disinfecting environmental surfaces?
Answer:
Use of friction to physically remove visible dirt, organic material, and debris--> removing the
microorganisms

Question:
3. What kind of environmental cleaning team should there be?
Answer:
Multidisciplinary team
EVS Infection prevention and control Nursing Administration Clinical engineering Facilities Materials
management Pharmacy Information Systems Food Services?

Question:
4. What are room disinfection units?
Answer:
Decontaminate environmental surfaces and objects if first properly cleaned
No-touch systems

Question:
5. What are No-touch cleaning methods?
Answer:
UV light Hydrogen Peroxide Copper Surface Technology
DO NOT replace standard cleaning and disinfection because surfaces must be physically cleaned of dirt
and debris

Question:
6. No-Touch: Ultraviolet Light
Answer:
Will break molecular bonds of DNA and destroy the organisms
UV-C light: 200-270 nm and lies in the germicidal active portion of the electromafnetic spectrum

Question:
7. What is the germicidal active portions of the electromagnetic spectrum?
Answer:
200 to 320 nm

, Question:
8. What is the UV-Light Efficacy factors?
Answer:
Intensity Exposure time Lamp Placement (distance from object) Presence or absence of reflective material
Air movement patterns/humidity

Question:
9. How has UV-light helped in infection reduction?
Answer:
Reductions in aerobic bacteria and C. Difficile counts on high-touch surfaces
Reduce the time needed to decontaminate a room using UV light

Question:
10. Hydrogen Peroxide
Answer:
Different H2O2 systems can be used to decontaminate environmental surfaces and objects in hospital
rooms

Question:
11. How is H2O2 effective?
Answer:
Good at eradicating different pathogens from rooms, furniture, and equipment

Question:
12. Wat pathogen are destroyed using H2o2
Answer:
MRSA M. Tuberculosis Serratia
C. Diff spores Clostridium botulinum spores

Question:
13. How effective is H2O2?
Answer:
Environmental decontamination with HP vapors reduces the risk for a patient admitted to a room
previously occupied by a patient with an MDRO from acquiring the MDRO by 64% compared to using
other methods

Question:
14. What is the downside of using H2O2 decontamination?
Answer:
It can take 4x longer than conventional cleaning--> prolonged turnover rate

Question:
15. Copper surface technology
Answer:
Copper and copper alloys have antimicrobial properties that interrupt the cellular activity of
microorganisms and inhibit growth