Which of the following is NOT a property of an antimicrobial agent? a. Must have a known concentration over a period of time required to eliminate a pathogen b. all choices are correct c. must be selectively toxic d. Must have a favorable chemotherapeutic index
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Which of the following is NOT a property of an antimicrobial agent?
a. Must have a known concentration over a period of time required to eliminate a pathogen
b. all choices are correct
c. must be selectively toxic
d. Must have a favorable chemotherapeutic index
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- Which of the following is not a factor that should be considered when selecting a antimicrobial drug? A. The nature of the microbe causing the infection B. The overall medical condition of the patient C. The origin of the drug D. The degree of susceptibility of the microbe to that drugAn antimicrobial agent shows selective toxicity when specifically: An antimicrobial agent is said to exhibit selective toxicity when it specifically: Select one: O does not induce the development of resistant strains of microorganisms O kills or destroys many species of microorganisms O kills or inhibits the microorganism with minimal or no damage to host cells O penetrates rapidly into host cells and tissues O does not interfere with host defense microorganismsConduct additional research on the use of triclosan and other chemical agents in antimicrobial products today. Develop an opinion on whether this process should continue, providing evidence to support your stance.
- Broad-spectrum drugs target a wide variety of bacterial pathogens. Even when the broad-spectrum drug is capable of killing a target pathogen, it may not be the best treatment. Which statement best explains why a broad spectrum drug might be an undesirable treatment choice? Broad-spectrum antimicrobials are usually toxic to the host cells. Broad-spectrum antimicrobials only work if they are used shortly after the infection begins. Broad-spectrum antimicrobials may kill much of the normal microbiota. Broad-spectrum antimicrobials are not able to kill bacteria that are in their log phase of growth. Broad-spectrum antimicrobials may stimulate excess growth of the normal microbiota.When to antimicrobial drugs are used at the same time, antagonistic effects can occur which of the following is not a possible antagonistic effect of combining two antimicriobial drugsChoose the false statement below: O Using three different classes of antimicrobials in combination greatly decreases the chance of developing resistance because the drug resistance strategy for one is the same for others. O Drug resistance to antimicrobials has proven to be extensive against chemotherapeutics as well as other chemical antimicrobials. O Collateral damage is a term that refers to the killing of normal body flora as well as pathogenic bacteria when taking antimicrobials or antibiotics.
- Soap and detergents are categorized as which type of antimicrobial chemical? oxidizing agent aldehyde surfactant alcoholGive a short comparison between alcohols and aldehydes as chemical antimicrobial agents.The type of antimicrobial drug that would be most likely to have toxic effects in humans based on the premise of selective toxicity when treating microbial infection would be a drug that O 1) inhibits the synthesis of the cell wall O 2) inhibits metabolic pathways O 3) disrupts the cytoplasmic membrane 4) inhibits protein synthesis 5) All of the above have equal potential to be toxic
- A research scientist is developing a new antimicrobial drug for a pharmaceutical company. Discuss at least 4 attibutes that this drug should posses in order to be an ideal antimicrobial drug.Which ONE of the following best describes ciprofloxacin? Select one: A. Active against Streptococcus pneumoniae B. An inhibitor of RNA synthesis C. An antimicrobial prodrug D. A natural product produced by Streptomyces spp. E. Subject to new restrictions and precautions for use due to very rare reports of disabling and potentially long-lasting or irreversible side effectsWhen two antimicrobial drugs are used at the same time, antagonistic effects can occur. Which of the following is NOT a possible antagonistic effect of combining two antimicrobial drugs? Increased elimination of one drug Increased activity of both drugs Increased toxicity Decreased therapeutic levels Decreased activity of both drugs