Full Answer
What are the primary modes of action of antimicrobial drugs?
All of these choices are correct. All of the following could be reasons why antimicrobic treatment fails except a disk diffusion test showing pathogen sensitivity to the antimicrobic. All of the following are correct about allergic reactions to drugs except allergic reactions generally will occur the first time a person takes the drug.
What strategies can be used to reduce the level of antimicrobial resistance?
Transcribed image text: Soru 69 / Soru Puanı 1 TIBBİ MİKROBİYOLOJİ All of the following could be reasons why antimicrobial treatment fails except A. B. c. a disk diffusion test showing pathogen sensitivity to the antimicrobial. diminished gastrointestinal absorption due to an underlying condition or age. a mixed infection where some of the pathogens are drug resistant. …
What is the cellular basis for bacterial resistance to antimicrobics?
Dec 16, 2014 · All of the following could be reasons why antimicrobic treatment fails except A. the inability of the drug to diffuse into the infected body compartment. B. a mixed infection where some of the pathogens are drug resistant. C. not completing the full course of treatment.
Are antimicrobics narrow-spectrum drugs?
All of the following could be reasons why antimicrobic treatment fails except A) the inability of the drug to diffuse into the infected body compartment.B) a mixed infection where some of the pathogens are drug resistant.C) not completing the full course of treatment.D) a disk diffusion test showing pathogen sensitivity to the antimicrobic.E) diminished gastrointestinal absorption …
Which of the following is an important characteristic of antimicrobial drugs?
An important quality for an antimicrobial drug is selective toxicity, meaning that it selectively kills or inhibits the growth of microbial targets while causing minimal or no harm to the host.
Which of the following antimicrobials is contraindicated for children due to tooth discoloration?
However, doxycycline is contraindicated in children under 8 years of age because of the risk of yellow tooth discolouration and dental enamel hypoplasia.Apr 13, 2017
What is the best guide for selecting an effective antibiotic?
In selecting an antibiotic, doctors also consider the following:The nature and seriousness of the infection.The status of the person's immune system (how well it can help the drug fight the infection)The drug's possible side effects.The possibility of allergies or other serious reactions to the drug.More items...
Which of these drugs is useful in treating infections by methicillin-resistant?
Methicillin-resistant Staphylococcus aureus (MRSA) is a common cause of serious nosocomial infections. Vancomycin, a glycopeptide in clinical use for more than 50 years, still serves as the cornerstone of the treatment of drug-resistant Gram-positive infections.Dec 12, 2016
What is the reason why tetracycline stain in tooth appears in incremental pattern?
To put it plainly, tooth discoloration occurs when tetracycline binds with the calcium needed for tooth development. This occurs during the mineralizing and calcifying process, resulting in intrinsic tooth stains — meaning the stains develop below the surface of the tooth.Jun 15, 2021
How would bacteria most likely acquire the following mechanism of antibiotic resistance?
Ways that Bacteria Acquire Resistance There are two main ways that bacterial cells can acquire antibiotic resistance. One is through mutations that occur in the DNA of the cell during replication. The other way that bacteria acquire resistance is through horizontal gene transfer.Aug 28, 2017
What three factors should be considered in selecting an appropriate antimicrobial drug?
The microbiological and clinical factors considered in the selection of appropriate antimicrobial therapy of anaerobic infections include: (1) the in-vitro activity of the drug against the pathogens; (2) the ability of the compounds to penetrate the infected site and resist inactivation; (3) the proven efficacy of the ...Apr 1, 1982
What factors will affect the selection of antibiotics and their dosages?
ResultsClinical situation. Both the current clinical situation and the patients' medical history appeared to play a crucial role in the decision to prescribe or not prescribe antibiotics. ... Advance care plans. ... Utilization of diagnostic resources. ... Physicians' perceived risks. ... Influence of others. ... Influence of the environment.Dec 16, 2014
Which of the following antimicrobial drugs would likely be useful to treat a methicillin resistant Staphylococcus aureus infection?
Linezolid is probably the drug of choice for the treatment of complicated MRSA skin and soft tissue infections (SSTIs); whether it is drug of choice in pneumonia remains debatable.
Why is MRSA resistant to methicillin?
Gram-positive bacteria acquire resistance to beta-lactam antibiotics through the production of a protein called PBP2a, which is able to avoid the inhibitory effects of the antibiotics. This is the mechanism by which MRSA is able to persist despite treatment with multiple beta-lactam antibiotics.
Which of these drugs is useful in treating infections by methicillin-resistant S. aureus and vancomycin resistant enterococcus?
Linezolid (Zyvox), a novel antimicrobial agent, has been approved by the U.S. Food and Drug Administration (FDA) primarily to fight resistant gram-positive cocci, such as vancomycin-resistant enterococcus, methicillin-resistant S. aureus, and penicillin-resistant pneumococci.Feb 15, 2002
What is methicillin-resistant Staphylococcus aureus treatment?
At home — Treatment of MRSA at home usually includes a 7- to 10-day course of an antibiotic (by mouth) such as trimethoprim-sulfamethoxazole (brand name: Bactrim), clindamycin, minocycline, linezolid, or doxycycline.Nov 20, 2020
What are the three most important considerations in selection and administration of antimicrobial drug therapy?
Please select the 3 most important considerations in selection and administration of antimicrobial drug therapy. 1) the overall medical condition of the patient. 2) the nature of the microorganism causing the infection. 3)the antibiotic susceptibility profile of the microorganism causing the infection.
What is a shotgun approach to antimicrobial therapy?
A "shotgun" approach to antimicrobial therapy involves. Using a broad spectrum drug so that the chance of killing the pathogen is greater. Please select the strategies that can be used to reduce the level of antimicrobial drug resistance. -prescribing antibiotics only for accurately diagnosed bacterial infections.
What are the modes of action of antimicrobials?
Please select the 5 primary modes of actions of antimicrobial drugs. 1)inhibition of protein synthesis. 2)inhibition of cell wall synthesis. 3)blocking key metabolic pathways. 4) disruption of cell membrane structure or function.
What is the basis for resistance to antimicrobics?
Tetracycline. The cellular basis for bacterial resistance to antimicrobics include. -synthesis of enzymes that alter drug structure. -bacterial chromosomal mutations. -prevention of drug entry into the cell. -alteration of drug receptors on cell targets.
What is broad spectrum drug?
Broad-spectrum drugs. A ratio of the dose of the drug that is toxic to humans versus the minimum effective dose for that pathogen is assessed to predict the potential for toxic drug reactions. This is called the. therapeutic index (TI). Please select all of the antimicrobial drugs that block protein synthesis.
Which drugs are used to treat aplastic anemia?
Tetracycline, chloramphenicol, amikacin, and erythromycin. Drug susceptibility testing. determines the pathogen's response to various antimicrobics. The drug that can cause aplastic anemia, and is used to treat typhoid fever and brain abscesses is.