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Question 2
The Kirby-Bauer disk diffusion method is often used in clinical diagnostic labs.
Question 2 options:
| a) True | |
| b) False |
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- Question 5  Antibiotic resistance might be assumed if 1. bacterial colonies are present on a streptomycin negative plate 2. bacterial colonies are present on a streptomycin positive plate 3. bacterial colonies are absent on a streptomycin negative plate 4. bacterial colonies are absent on a streptomycin positive plateQuestion 6 Which of the following is the correct sequence for the aseptic transfer of a bacterial culture? - 1. 2. 3. 4. 5. 6. 7. Remove the lid of the media receiving the culture & flame the mouth of this tube. - 1. 2. 3. 4. 5. 6. 7. Flame the mouth of the culture tube. - 1. 2. 3. 4. 5. 6. 7. Insert the wire loop with the culture to inoculate the bacteria on or in the new media. - 1. 2. 3. 4. 5. 6. 7. Reheat the mouth of the culture tube and replace the cap. - 1. 2. 3. 4. 5. 6. 7. Sterilize the loop by heating it from base to tip uniformly orange-hot. - 1. 2. 3. 4.…Question 16 Within the context of infectious disease, which of the following specimens would be considered irretrievable? Question 16 options: a) Wound swab b) Blood sample for therapeutic drug monitoring c) Cerebrospinal fluid d) Urine sample
- Question 14 Which of the following terms refers to specific procedures used to prevent unwanted microorganisms from contaminating the clinical specimen? Question 14 options: a) Needle aspiration b) Catheterization c) Disinfectant technique d) Aseptic techniqueWhat is the “Powley test”?the answerQuestion 24 Which of the following specimens should be kept at room temperature to maintain the growth and viability of the causative pathogen? Question 24 options: a) Urine and blood samples should always be kept at room temperature b) Blood and cerebrospinal fluid for bacterial cultures should always be kept at room temperature c) Blood and fecal specimens should always be kept at room temperature d) Urine and sputum samples should always be kept at room temperature
- Question 7: How could immunotherapy be used to kill superbugs and how would this therapy distinguish between bacterial cells and human cells?question 11 Explain the role of streptomycin in the lab. 1. Streptomycin was the bacteria to which we applied the antibiotic 2. Streptomycin refers to the spreading process that precedes incubation. 3. Streptomycin is the growth medium that bacteria require to grow. 4. Streptomycin was the antibiotic to which we exposed the bacteriaQuestion 15 Which of the following agents used for routine hand hygiene in health care settings is most bactericidal and least irritating to the skin? Question 15 options: a) Alcohol-based handrub b) Chlorhexidine handwash c) Plain soap and water d) Antimicrobial soap and water
- Question 26 A ___ is an even layer of bacteria on an agar plate. a progenitor cell b bacterial lawn c Kirby-Bauer test d colonyQUESTION 41 You are doing research on a bacterium that undergoes gliding, not surprisingly you note the bacterium produces what? • A. capsule • B. hamus/hami • C. slime layer D. surface array layer (S layer) • E. stalkQuestion 5 You spread a small amount of a water sample from the environment on an enriched media agar plate. After 24 hours, the plate is covered with many small yellow colonies. Does this plate contain a pure culture of bacteria? ○ No, because it came from the environment, there are lots of different organisms. ○ We know there are multiple species present, but each colony is a different species. ○ Yes, we know the plate contains a pure culture because there are individual colonies. ○ We do not know if the plate contains a pure culture or a mixed culture. or even if individual colonies are pure or mixed based on their appearance alone.
