FNS 125 ch 23 class quizzes

Bonus Question. Several factors influence the effectiveness of antimicrobial agents used to control microbial growth.

1. nature of the disinfectant 2. concentration of the disinfectant 3. nature of the material to be disinfected 4. number of microorganisms present 5. type of microorganism present 6. length of exposure to disinfectant 7. temperature of the disinfectant during exposure 8. disinfectant's pH during exposure

2. Which of the following is an effective disinfectant and a cold chemical sterilant? a. glutaraldehyde b. formalin c. Cepacol d. tincture

a. glutaraldehyde

5. Which of the following types of disinfectants includes benzalkonium chloride? a. quaternary ammonium compounds b. phenols c. halogens d. bleaches

a. quaternary ammonium compounds

1. Which of the following is the process of completely removing or destroying all life-forms, endospores, or their products on or in a substance? a. sterilization b. disinfection c. antisepsis d. scrubbing

a. sterilization

Which of the following is an effective disinfectant and a cold chemical sterilant? iodine glutaraldehyde isopropyl alcohol halogens

glutaraldehyde

A form of nonionizing radiation that can effectively control growth of microorganisms placed directly in its path. sporicidal treatment disinfection treatment ultraviolet light object sterilization

ultraviolet light

Matching: 1. ________ fungicides 2. ________ disinfection 3. ________ quats 4. ________ thermal death point 5. ________ halogens 6. ________ Joseph Lister 7. ________ iodophore Matching: a. a group of disinfectants that are deactivated in the presence of soap b. first to use phenol as a treatment for wound infections c. kill both fungi and their spores d. a compound of iodine and a surfactant such as a detergent that can slowly release the free iodine e. hydrogen, fluorine, chlorine, bromine, iodine and astatine f. is the destruction of pathogenic agents by chemical or physical means by applying the disinfectant to an inanimate object g. the lowest temperature at which all microorganisms are killed in 10 minutes

1. C 2. F 3. A 4. G 5. E 6. B 7. D

The shorter the exposure of a microbe to an antimicrobial agent, the greater the number of microorganisms that will be killed. True False

False

Match the following Question Selected Match fungicides disinfection quats thermal death point halogens Joseph Lister iodophore All Answer Choices A. hydrogen, fluorine, chlorine, bromine, iodine and astatine B. a compound of iodine and a surfactant such as a detergent that can slowly release the free iodine C. first to use phenol as a treatment for wound infections D. the lowest temperature at which all microorganisms are killed in 10 minutes E. a group of disinfectants that are deactivated in the presence of soap F. if the destruction of pathogenic agents by chemical or physical means by applying the disinfectant to an inanimate object G. kill both fungi and their spores

G. kill both fungi and their spores F. if the destruction of pathogenic agents by chemical or physical means by applying the disinfectant to an inanimate object E. a group of disinfectants that are deactivated in the presence of soap D. the lowest temperature at which all microorganisms are killed in 10 minutes A. hydrogen, fluorine, chlorine, bromine, iodine and astatine C. first to use phenol as a treatment for wound infections B. a compound of iodine and a surfactant such as a detergent that can slowly release the free iodine

The process by which microbial growth is inhibited on living tissue to prevent infection is termed? disinfection antisepsis sterilization sporulation

antisepsis

Which of the following physical methods of sterilization incorporates both free-flowing steam and pressure? boiling autoclaves incineration cremation

autoclaves

10. The shorter the exposure of a microbe to an antimicrobial agent, the greater the number of microorganisms that will be killed. a. True b. False

b. False

4. The process by which microbial growth is inhibited on living tissue to prevent infection is termed _______________. a. disinfection b. antisepsis c. sterilization d. sporulation

b. antisepsis

3. Which of the following is a concentrated, liquid form of formaldehyde, which is 37 percent formaldehyde by mass and 40 percent by volume? a. Cepacol b. formalin c. glutaraldehyde d. tincture

b. formalin

8. The common antiseptic, Betadine, is a compound of iodine and a surfactant, such as a detergent, that can slowly release the free iodine, termed an __________? a. tincture b. iodophore c. halogen d. cresol

b. iodophore

6. Typically, larger populations of microorganisms take _______ to kill than smaller populations. a. less time b. more time c. the same amount of time

b. more time

3. Which of the following refers to the minimum time it takes to kill all microorganisms present by heat? a. thermal death point b. thermal death time c. decimal reduction time d. maximum temperature

b. thermal death time

2. Which of the following physical methods of sterilization incorporates both free-flowing steam and pressure? a. incineration b. cremation c. autoclaves d. boiling

c. autoclaves

1. Which of the following refers to phenolic compounds derived from toluene? a. quaternary ammonium compounds b. aldehydes c. cresols d. halogens

c. cresols

5. __________ __________ is a form of nonionizing radiation that can effectively control growth of microorganisms placed directly in its path. a. sporicidal treatment b. disinfection treatment c. ultraviolet light d. object sterilization

c. ultraviolet light

9. Which of the following processes does NOT produce a sterilized product? a. cremation b. incineration c. glutaraldehyde d. dry heat

d. dry heat

4. Which of the following is an effective disinfectant and a cold chemical sterilant? a. iodine b. isopropyl alcohol c. halogens d. glutaraldehyde

d. glutaraldehyde

7. Which of the following chemicals can be used to sterilize embalming instruments when an autoclave is not available? a. carbolic acid b. sporicide c. isopropyl alcohol d. glutaraldehyde

d. glutaraldehyde

Which of the following is a concentrated, liquid form of formaldehyde, which is 37 percent formaldehyde by mass and 40 percent by volume? Cepacol formalin glutaraldehyde tincture

formalin

Which of the following types of disinfectants includes benzalkonium chloride? quaternary ammonium compounds phenols halogens bleaches

quaternary ammonium compounds

Which of the following is the process of completely removing or destroying all lifeforms, endospores, or their products on or in a substance? sterilization disinfection antisepsis scrubbing

sterilization