1. how do we con- chemical use of antiseptics and disinfectants in hospitals
trol microbes in
hospitals?
2. sterilizing sterile; no microbes
3. sanitation acceptable; remove waste
4. antiseptic substance that prevents infection; clean and sterile; ex: hand sanitizer
5. disinfectant chemical substance that kills harmful bacteria or viruses; ex: chlorine
6. fomite inanimate object
7. microbicidal kills microbes; bactericidal, fungicidal, viricidal
8. bacteriostatic inhibits bacterial growth
9. nosocomial in- hospital acquired infections
fections/HAI
10. how long must a 2 minutes; microbial death curve
chemical come in
contact with con-
tamination?
11. D-value the decimal reduction time (D-value) is the time it takes to kill 90% of the popu-
lation
12. degerming
, BIOS 2210 Exam 3 Test Questions and Answers Graded A+
microbial numbers are significantly reduced by gently scrubbing living tissue,
most commonly skin, with a mild chemical to avoid pathogenic microbial trans-
mission; removes MOST (not all) microbes
13. ex of degerming handwashing, wiping skin with alcohol swab at injections site
14. personal hy- most ettective prevention for stopping the spread of hospital acquired infections
giene: hand- (HAI) and some foodborne disease
washing
15. CDC handwash- 1. wet your hands with clean, running water (warm of cold), turn ott the tap, apply
ing recommen- soap
dations for the 2. lather your hands by rubbing them together with the soap, be sure to later the
general public backs of your hands, between fingers and under your nails
3. scrub your hands for at least 20 seconds (Happy Birthday song twice in your
head as a timer)
4. rinse your hands well under clean, running water
5. dry your hands using a clean towel or air-dry them
16. triclosan antibiotic soap; disinfectant and antiseptic chemical added to many products
17. alcohol gels, as ef-MOA- degrades protein and disrupts lipids in membrane
fective?
18. hospital acquired MRSA and VRSA; Clostridium diflcile; CRE; VRE; P. aeruginosa; Tb (tuberculosis);
infections (HAI) Norovirus
19. CDC shows the Why? Although alcohol-based hand sanitizers can inactivate many types of mi-
science crobes very ettectively when used correctly, people may not use a large enough
volume of the sanitizers or may wipe it ott before it has dried. furthermore, soap
and water are more ettective than hand sanitizers at removing or inactivating
certain kinds of germs, like Cryptosporidium, norovirus, and Clostridium diflcile
20.
, BIOS 2210 Exam 3 Test Questions and Answers Graded A+
testing chemical disk dittusion test: Kirby-Bauer only for antibiotics and standardized; can't deter-
effectiveness mine MOA; zone of inhibition
21. CRE carbapenem-resistant enterobacteriaceae: a drug resistant family of bacteria nor-
mally found in the digestive system. when CRE is introduced to other body systems
(improperly cleaned surgical instruments, catheters or endospores) aggressive
infections can occur
22. endospores resistant, dormant structure formed inside of some bacteria that can withstand
adverse conditions
23. surfactants compounds that lower the surface tension of water
24. chemotherapy antimicrobial drugs
25. antibiotic (natur- antimicrobial: anything fighting microbes
al) vs antimicro- antibiotics: drugs used to fight bacteria (antibacterial)
bial vs antibacte-
rial
26. dosage the size or frequency of a dose of a medicine or drug.
27. route of adminis- the method of introducing a medication into the body
tration
28. synergistic infec- infection caused by the correlated action of two or more microorganisms; also
tion known as a polymicrobial infection
ex: trench mouth and bacterial vaginosis
29. selective toxicity selectively finding and destroying pathogens without damaging the host
30. mode/mecha- the way through which chemotherapeutic drugs kill or inhibit the growth of
nism of action pathogens
(MOA)