Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most dangerous organisms that can be encountered in the health care setting. MRSA is often resistant to more than one antibiotic. 1. What does it mean to say that S. aureus is resistant to methicillin? 2. What antibiotic would you choose to combat this micro-organism? 3. What are some clinical consequences for the patient infected with MRSA?

Methicillin-resistant Staphylococcus aureus (MRSA) is one of the most dangerous organisms that can be encountered in the health care setting. MRSA is often resistant to more than one antibiotic. 1. What does it mean to say that S. aureus is resistant to methicillin? 2. What antibiotic would you choose to combat this micro-organism? 3. What are some clinical consequences for the patient infected with MRSA?

Microbiology for Surgical Technologists (MindTap Course List)

2nd Edition

ISBN:9781111306663

Author:Margaret Rodriguez, Paul Price

Publisher:Margaret Rodriguez, Paul Price

Chapter9: Microbial Disease Transmission

Section: Chapter Questions

Problem 4UTM

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As an illustration, a patient undergoing a laparoscopic-assisted vaginal hysterectomy (LAVH) procedure under general anesthesia might be happier not to know the numbers of portals of entry for potential transmission of pathogenic microbes to which she will be subjected. The anesthesia provider would be accessing the patients airway and vascular system by an IV line. Which portals of entry will the surgeon be accessing?
Which of the following is NOT true of bacterial exotoxins? 1. Important in the pathogenesis of many human diseases 2. Their toxic effect can be systemic, affecting cells distant from the primary site of infection 3. None of the other four answers (All are true of bacterial exotoxins) 4. Different exotoxins may affect different types of cells (e.g., nerves, gastrointestinal mucosa) 5. Some exotoxins have two components, A (active) and B (binding)
1. What are the six components of the chain of infection? How does each component affect the cycle of the chain of infection? 2. Give a short list of the different ways on how to transmit a certain disease. Provide an example for each. 3. Why do you think proper handwashing is extremely important? 4. How are hazardous materials classified? What is NFPA and its functions?
1) It is sometimes best to use two different antibiotics in order to treat an infection. This might happen because of the : -Symbiotic effects of the drugs -Synergistic effects of the drugs -Antagonistic effects of the two drugs 2) What was the first synthetic antimicrobial? - Salvarsan - Tetracycline - Sulfonimide
Identifying an unknown bacterium is an essential step in the diagnosis and treatment process. Since not every antibiotic is effective against every type of bacteria, knowing what caused a particular infection allows us to make correct prescriptions so patients can recover more quickly. Knowing the cause of an infection also prevents antibiotic resistance as well, since incorrect prescriptions allow bacteria to be unnecessarily be exposed to antibiotics, increasing the chances of developing resistance.
Which of the following is NOT a true statement about microbial infections and disease? 1. Some infections are caused by normal microbiota acting as opportunistic pathogens 2. For some infections, a portion of infected people may never develop any signs or symptoms of disease 3. The time between the effective exposure and appearance of the very first signs or symptoms is called the incubation period 4. None of the other four answers (All are true statements) 5. All infectious diseases are communicable; i.e., they can be transmitted between hosts
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Three patients in a large hospital acquired infections of Pseudomonas cepacia during their stay. All three patients received cryoprecipitate, which is prepared from blood that has been frozen in a standard plastic blood transfer pack. The transfer pack is then placed in a water bath to thaw. 1. А. What is probable origin of the nosocomial infections? What characteristics of Pseudomonas cepacia would allow it to be involved in this type of infection? В. С. What actions should be taken to prevent this type of infection from reoccurring?
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