MCB 2289 MOdule08 Learnsmart quiz

 Question 1 An antimicrobial, such as isoniazid, that is only effective against mycobacterial species would be referred to as a __________ drug. Selected Answer: Narrow spectrum Answers: Broad spectrum Narrow spectrum Intermediate spectrum Naturally occurring  Question 2 A drug which reduces the normal microbiota but doesn't effectively target the causative agent of an infection may actually make the infection worse. Selected Answer: Tru e Answers: Tru e False  Question 3 A bacterial strain has been isolated from a patient's urine specimen and a Kirby-Bauer susceptibility test has been performed on the strain. There is no zone of inhibition around Antibiotic X. Which statement correctly describes this situation? Selected Answer: The bacteria is resistant to Antibiotic X. Answers: Antibiotic X is resistant to the bacteria. Antibiotic X is resistant to the patient. The bacteria is resistant to Antibiotic X. The patient is resistant to Antibiotic X.  Question 4 UV radiation causes the formation of adenine dimers. This study source was downloaded by from CourseH on :06:10 GMT -05:00 This study resource was shared via CourseHSelected Answer: Fals e Answers: True Fals e  Question 5 Based on the results of a disk diffusion antimicrobial susceptibility test, the growth of an organism was found to be signifcantly inhibited by the antimicrobial drug. Based on this observations, the bacteria is described as being __________ to the drug. Selected Answer: Susceptibl e Answers: Resistant Intermedia te Susceptibl e Unaffected  Question 6 The wavelength of ultraviolet radiation is shorter than the wavelengths of visible light Selected Answer: Tru e Answers: Tru e False  Question 7 In which items or situations might you want to reduce or limit microbial growth? Selected Answer: All of the above Answers: Drinking water Surgical incision Storing leftover food All of the above This study source was downloaded by from CourseH on :06:10 GMT -05:00 This study resource was shared via CourseH Question 8 The clear area where no bacteria are growing around the chemical disk is called a zone of inhibition. Selected Answer: Tru e Answers: Tru e False  Question 9 Which is the preferred media for use with the Kirby-Bauer susceptibility test? Selected Answer: Mueller Hinton agar Answers: Trypticase soy agar Mueller Hinton agar Blood agar Chocolate agar  Question 10 Which of the following is a chemical means of controlling microbial growth? Selected Answer: Disinfectant Answers: Disinfectant High temperature Scrubbing action Ultraviolet radiation  Question 11 The sources of all antimicrobial drugs are fungi and other microorganisms. Selected Answer: Fals e Answers: True This study source was downloaded by from CourseH on :06:10 GMT -05:00 This study resource was shared via CourseHFals e  Question 12 Chlorohexidine, chlorxylenol, or iodine compounds are often found in antimicrobial soaps used as surgical scrubs. These are examples of ______________? Selected Answer: Antiseptics Answers: Antibiotics Disinfecta nts Antiseptics Sterilants  Question 13 An antibiotic which interferes with the activity of ribosomes would have the most effect on which of the following? Selected Answer: Protein synthesis Answers: DNA replication The cell wall Protein synthesis Cell membrane function  Question 14 Which of the following processes removes or destroys endospores? Selected Answer: Sterilizati on Answers: Antisepsis Disinfecti on Sterilizati on This study source was downloaded by from CourseH on :06:10 GMT -05:00 This study resource was shared via CourseHSanitizati on  Question 15 All of the following are possible outcomes of selecting an antibiotic that is ineffective to treat a particular infection EXCEPT? Selected Answer: The targeted pathogen will decrease in number and the infection will resolve Answers: The infection may worsen The targeted pathogen will decrease in number and the infection will resolve The targeted pathogen will continue to grow and cause disease The normal microbiota may be destroyed, enabling the targeted pathogen to grow even better This study source was downloaded by from CourseH on :06:10 GMT -05:00 This study resource was shared via CourseH Powered by TCPDF ()