Microbiology Chapter 9 Exam Questions with 100% Correct Answers | Verified | Updated

Microbiology Chapter 9 Exam Questions with 100% Correct Answers | Verified | Updated Select the methods below that illustrate the use of moist heat to control microbes. a. steam autoclave b. incineration c. pasteurization d. desiccation e. tyndallization f. boiling water - answera, c, e, f the relative resistance of various microbes to microbial control agents. --most resistant to least - answerprions, bacterial endospores, mycobacterium, staphylococcus and pseudomonas, protozoan cysts, protozoan trophozoites, most gram-negative bacteria, fungi and fungal spores, non enveloped spores, most gram-positive bacteria, enveloped virus Choose the statement that identifies the major disadvantage of both cold and desiccation in terms of microbial control. a. These methods are technically difficult and labor intensive. b. These methods may encourage growth of microbial populations. c. These methods are bacteriostatic rather than bactericidal. d. These methods produce harmful by-products and are costly. - answerC Which of the following are correctly matched? a. Bactericidal—inhibits the growth of bacteria b. Bactericidal—kills bacteria c. Bacteriostatic—inhibits the growth of bacteria d. Bacteriostatic—kills bacteria - answerB and C What is the most important action by the RN prior to beginning the dressing change? - answerproper hand hygiene The wound care RN uses hydrogen peroxide in wound cleansing. Which of the following terms best represents the treatment goal with the application of this chemical agent? - answerantisepsis Which of the following would not be killed by standard-concentration hydrogen peroxide? - answerendospores Which of the following are physical control methods? a. phenolics b. cold c. dry and moist heat d. radiation e. halogens f. desiccation - answerB, C, D, F Choose the method used to sterilize a bacteriologic loop before and after inoculating a culture in the laboratory. a. hot air b. tyndallization c. incineration d. radiation e. pasteurization - answerC Please choose the answer that best c