week 6D2
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Questions and Answers

Which term describes a substance that effectively inhibits the reproduction of bacteria without destroying them?

  • Bactericidal
  • Broad spectrum
  • Bacteriostatic (correct)
  • Antiviral
  • What is the primary definition of broad spectrum antibiotics?

  • Effective against a specific type of bacteria
  • Effective against viruses
  • Effective against a wide range of bacteria (correct)
  • Inhibiting reproduction of bacteria
  • Which side effect is characterized by a severe skin reaction associated with the use of some antibiotics?

  • Torsades de Pointes
  • C-Difficile infection
  • Steven-Johnson Syndrome (correct)
  • DRESS
  • What is the implication for a patient allergic to penicillin regarding cephalexin?

    <p>They may experience allergic reactions due to cross-reactivity.</p> Signup and view all the answers

    What defines a bactericidal antibiotic?

    <p>It destroys bacteria outright.</p> Signup and view all the answers

    Which term describes a treatment that is effective against viruses?

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

    What term describes a substance that destroys bacteria?

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

    Broad spectrum antibiotics only target a specific type of bacteria.

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

    What is eosinophilia?

    <p>Increased eosinophils</p> Signup and view all the answers

    Antibiotics that are effective against viruses are referred to as ______.

    <p>anti-viral</p> Signup and view all the answers

    Match the following side effects with their descriptions:

    <p>Hypersensitivity = An exaggerated immune response causing allergic reactions DRESS = Drug rash with eosinophilia &amp; systemic symptoms Steven-Johnson Syndrome = Severe skin reaction leading to blistering C-Difficile = Bacterial infection that can occur due to antibiotics usage</p> Signup and view all the answers

    Which of the following is a contraindication for taking cephalexin?

    <p>Allergy to penicillin</p> Signup and view all the answers

    Study Notes

    Definitions of Key Terms

    • Antibacterial: Refers to agents that combat bacteria, aiming to halt their growth or destroy them.
    • Bactericidal: Class of antibacterial agents that actively kill bacteria rather than just inhibiting their growth.
    • Broad spectrum: Antibiotics that are effective against a wide variety of bacterial species, targeting multiple types.
    • Bacteriostatic: Agents that inhibit bacterial reproduction but do not kill them outright, allowing the immune system to eliminate the pathogens.
    • Narrow spectrum: Antibiotics specifically designed to target a limited range of bacteria, often used for infections known to be caused by specific organisms.
    • Anti-viral: Medications or treatments effective against viruses, designed to interfere with viral replication.

    Antibiotics Mechanisms of Action

    • Different classes of antibiotics (ABX) have varied mechanisms through which they exert their effects.
    • Mechanisms can include inhibiting cell wall synthesis, protein synthesis, nucleic acid synthesis, or metabolic pathways.

    General Side Effects of Antibacterial Preparations

    • Hypersensitivity: Allergic reactions that can manifest as rashes or more severe symptoms.
    • DRESS (Drug Rash with Eosinophilia and Systemic Symptoms): A severe reaction characterized by a rash, fever, and affected internal organs.
    • Steven-Johnson Syndrome: A serious disorder where lesions appear on the skin and mucous membranes, potentially life-threatening.
    • Super-infection: A secondary infection that occurs following the primary infection treatment, often due to disruption of normal flora.
    • C-Difficile: An infection caused by Clostridium difficile that can happen due to antibiotic use, leading to severe diarrhea.
    • Torsades de Pointes: A specific type of abnormal heart rhythm that can occur as a side effect of some antibiotics.

    Eosinophilia

    • Defined as an increased number of eosinophils in the blood, often associated with allergic responses or infections.

    Contraindications for Selected Antibiotics

    • Patients allergic to penicillin have a heightened risk of being allergic to related antibiotics, such as Cephalexin, due to cross-reactivity.

    Definitions of Key Terms

    • Antibacterial: Refers to agents that combat bacteria, aiming to halt their growth or destroy them.
    • Bactericidal: Class of antibacterial agents that actively kill bacteria rather than just inhibiting their growth.
    • Broad spectrum: Antibiotics that are effective against a wide variety of bacterial species, targeting multiple types.
    • Bacteriostatic: Agents that inhibit bacterial reproduction but do not kill them outright, allowing the immune system to eliminate the pathogens.
    • Narrow spectrum: Antibiotics specifically designed to target a limited range of bacteria, often used for infections known to be caused by specific organisms.
    • Anti-viral: Medications or treatments effective against viruses, designed to interfere with viral replication.

    Antibiotics Mechanisms of Action

    • Different classes of antibiotics (ABX) have varied mechanisms through which they exert their effects.
    • Mechanisms can include inhibiting cell wall synthesis, protein synthesis, nucleic acid synthesis, or metabolic pathways.

    General Side Effects of Antibacterial Preparations

    • Hypersensitivity: Allergic reactions that can manifest as rashes or more severe symptoms.
    • DRESS (Drug Rash with Eosinophilia and Systemic Symptoms): A severe reaction characterized by a rash, fever, and affected internal organs.
    • Steven-Johnson Syndrome: A serious disorder where lesions appear on the skin and mucous membranes, potentially life-threatening.
    • Super-infection: A secondary infection that occurs following the primary infection treatment, often due to disruption of normal flora.
    • C-Difficile: An infection caused by Clostridium difficile that can happen due to antibiotic use, leading to severe diarrhea.
    • Torsades de Pointes: A specific type of abnormal heart rhythm that can occur as a side effect of some antibiotics.

    Eosinophilia

    • Defined as an increased number of eosinophils in the blood, often associated with allergic responses or infections.

    Contraindications for Selected Antibiotics

    • Patients allergic to penicillin have a heightened risk of being allergic to related antibiotics, such as Cephalexin, due to cross-reactivity.

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    Description

    Test your knowledge on the definitions of key terms related to antibiotics and their mechanisms of action. This quiz will cover various types of antibacterial agents, their functions, and the difference between broad and narrow spectrum antibiotics. Perfect for students studying microbiology or pharmacology.

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