Occupational Hazards and Quality Control
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Questions and Answers

Which of the following best describes a common source of microbial contamination in healthcare settings?

  • Unsterilized surgical instruments (correct)
  • Insufficient lighting in the surgical room
  • Overcrowded waiting rooms
  • Inadequate nutrition of patients
  • What is the primary method for testing the effectiveness of antibiotics against specific microbial strains?

  • Biochemical oxygen demand assessment
  • Serological testing
  • Thermal conductivity measurement
  • Culture and sensitivity testing (correct)
  • Which of the following factors significantly contributes to antibiotic resistance observed in contaminants?

  • Presence of food particles in surgical areas
  • High patient turnover rate
  • Overuse and misuse of antibiotics (correct)
  • Low microbial diversity in hospitals
  • What impact do contaminants such as MRSA have on health care-associated infections?

    <p>They increase the duration of hospital stays</p> Signup and view all the answers

    Which of the following microbial assay methods is commonly used to estimate viable cell counts?

    <p>Colony-forming unit (CFU) counts</p> Signup and view all the answers

    Which of the following is a common test organism used in antibiotic susceptibility testing?

    <p>E. coli</p> Signup and view all the answers

    The presence of which type of microbe is primarily associated with wound infections in healthcare settings?

    <p>Bacteria</p> Signup and view all the answers

    Which of the following statements about microbiological contamination is true?

    <p>Microbial contamination can arise from multiple sources, including healthcare practices</p> Signup and view all the answers

    Which vitamin deficiency is associated with the development of pellagra?

    <p>Vitamin B3</p> Signup and view all the answers

    Which mineral is recognized for its role in boosting immune system function?

    <p>Zinc</p> Signup and view all the answers

    Identify the trace mineral crucial for heme synthesis and wound healing.

    <p>Copper</p> Signup and view all the answers

    The neurological disorder known as Wernicke-Korsakoff Syndrome is primarily associated with which vitamin deficiency due to alcoholism?

    <p>Vitamin B1</p> Signup and view all the answers

    Which type of malnutrition is linked to improper digestion and absorption of nutrients?

    <p>Secondary malnutrition</p> Signup and view all the answers

    What describes the daily nutritional requirements for a normally healthy individual?

    <p>RDA (Recommended Dietary Allowance)</p> Signup and view all the answers

    What is the primary reason for the ban on nitrites as food preservatives?

    <p>They can form carcinogenic compounds</p> Signup and view all the answers

    Which of the following health issues is associated with antibiotic resistance in microbial contaminants?

    <p>Increased infection rates</p> Signup and view all the answers

    Which organism is commonly identified as a contaminant in hand cream?

    <p>Klebsiella pneumoniae</p> Signup and view all the answers

    Which microbial contaminant has been linked to talcum powder?

    <p>Serratia marcescens</p> Signup and view all the answers

    What type of bacteria is commonly found in antiseptic mouthwash?

    <p>Pseudomonas aeruginosa</p> Signup and view all the answers

    Which organism poses a risk related to microbial contamination in intravenous fluids?

    <p>Klebsiella pneumoniae</p> Signup and view all the answers

    Which of the following is known for its antibiotic resistance among microbial contaminants?

    <p>Enterobacter cloacae</p> Signup and view all the answers

    Which bacterial group is frequently implicated in health impacts from microbial contamination?

    <p>Gram-negative bacteria</p> Signup and view all the answers

    What type of substances can Enterobacter spp. contribute to in terms of product contamination?

    <p>Miscellaneous herbal products</p> Signup and view all the answers

    Which organism is associated with the microbial contamination of the influenza vaccine?

    <p>Serratia marcescens</p> Signup and view all the answers

    Study Notes

    Occupational Hazards

    • Physical hazards encompass heat, cold, noise, and vibration
    • Chemical hazards include toxins, reagents, cleaning products, acids, pesticides, and flammable liquids
    • Carbon monoxide, a chemical hazard, has a higher affinity for hemoglobin than oxygen, leading to asphyxia
    • Biological hazards include blood, fungi, molds, bacteria, animal droppings, and insect bites
    • Ergonomic hazards involve uncomfortable chairs and bodily wear and tear

    Quality Assurance & Quality Control

    • MRSA (Methicillin-Resistant Staphylococcus aureus) is a major cause of healthcare-associated infections (HCAI's)
    • MRSA causes wound and soft tissue infections, catheter-associated urinary tract infections, colitis, and ventilator-associated pneumonia
    • Major contributors to HCAIs include failure of healthcare personnel to follow handwashing protocols and an increased number of immunocompromised patients
    • Carbon monoxide is an air contaminant that can cause death by asphyxiation in high concentrations
    • Vit. B deficiency, often caused by alcoholism, can lead to a neurological disorder called Wernicke-Korsakoff Syndrome
    • Secondary malnutrition results from inadequate mastication, digestion, absorption, transport, and excretion of nutrients
    • RDA stands for Recommended Daily Allowance and describes the amount of energy, protein, minerals, and vitamins needed by healthy individuals
    • Nitrites, used as preservatives in food, can react with amines to form carcinogenic nitrosoamines, posing a health risk

    Microbial Contaminants

    • Pseudomonas aeruginosa has been identified as a microbial contaminant in hand cream
    • Coliforms have been identified as a microbial contaminant in talcum powder
    • Coliforms have been identified as a microbial contaminant in mouthwash
    • Pseudomonas aeruginosa has been identified as a microbial contaminant in intravenous fluids

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    Related Documents

    Module 6 Microbiology PDF

    Description

    This quiz covers the essential aspects of occupational hazards, including physical, chemical, biological, and ergonomic factors. It also addresses quality assurance in healthcare, focusing on the prevention of healthcare-associated infections, particularly those caused by MRSA. Test your knowledge on safety protocols and quality control measures in various environments.

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