Rickettsial Diseases and Rash Quiz
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Questions and Answers

What characterizes the rash associated with Rocky Mountain spotted fever?

  • Appears as mulberrylike inclusions in the cytoplasm.
  • Is primarily located on the face and back.
  • Starts centrally and spreads outward, sparing palms and soles.
  • Starts at wrists and ankles, then spreads to the trunk, palms, and soles. (correct)

    • Which vector is responsible for transmitting Typhus?

  • Mosquitoes
  • Ticks
  • Lice (correct)
  • Fleas (correct)

    • Which of the following diseases is not caused by a vector?

  • Q fever (correct)
  • Rocky Mountain spotted fever
  • Ehrlichiosis
  • Anaplasmosis

    • What type of inclusions would you expect to find in the cytoplasm of monocytes in a patient with Ehrlichiosis?

    <p>Mulberrylike morulae B</p> Signup and view all the answers

    Which symptom is NOT associated with Q fever?

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

    Which disease is most commonly associated with a rash that starts at the wrists and ankles?

    <p>Rocky Mountain spotted fever</p> Signup and view all the answers

    What is the primary vector for Anaplasmosis?

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

    Which symptom is commonly associated with Q fever?

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

    Which of the following statements about Typhus is correct?

    <p>The rash starts centrally and spreads out, sparing the palms and soles.</p> Signup and view all the answers

    What type of inclusions are found in the cytoplasm of granulocytes in Anaplasmosis?

    <p>Morulae C</p> Signup and view all the answers

    What is the primary vector for Rocky Mountain spotted fever?

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

    Which disease is characterized by a rash that starts centrally and spreads outward, sparing the palms and soles?

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

    Which disease is transmitted by inhalation and not through an arthropod vector?

    <p>Q fever</p> Signup and view all the answers

    What type of cells would you expect to see with morulae inclusions in a patient with Anaplasmosis?

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

    What is a common presentation in patients with Q fever?

    <p>Headache and cough</p> Signup and view all the answers

    Which disease is primarily associated with a rash that starts at the wrists and ankles?

    <p>Rocky Mountain spotted fever</p> Signup and view all the answers

    What is the primary vector responsible for transmitting Typhus?

    <p>Fleas and human body louse</p> Signup and view all the answers

    Which of the following diseases does NOT have a rash as a typical presentation?

    <p>Q fever</p> Signup and view all the answers

    What characteristic is associated with granulocytes in patients with Anaplasmosis?

    <p>Presence of morulae C</p> Signup and view all the answers

    Which symptom is commonly presented in patients with Q fever?

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

    Study Notes

    Common Rash Diseases

    • Rocky Mountain spotted fever

      • Primarily occurs in South Atlantic states, especially North Carolina.
      • Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.

    • Typhus

      • Transmitted by fleas (endemic) and human body louse (epidemic).
      • Rash starts at the center of the body and spreads outward, sparing palms and soles.

    Rare Rash Diseases

    • Ehrlichiosis

      • Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.

    • Anaplasmosis

      • Also tick-borne; features granulocytes with morulae C in the cytoplasm.

    • Q fever

      • No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
      • Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
      • Notably a cause of culture-negative endocarditis.
      • Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
      • Closely related to Rickettsia but not classified within that genus.

    Common Rash Diseases

    • Rocky Mountain spotted fever

      • Primarily occurs in South Atlantic states, especially North Carolina.
      • Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.

    • Typhus

      • Transmitted by fleas (endemic) and human body louse (epidemic).
      • Rash starts at the center of the body and spreads outward, sparing palms and soles.

    Rare Rash Diseases

    • Ehrlichiosis

      • Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.

    • Anaplasmosis

      • Also tick-borne; features granulocytes with morulae C in the cytoplasm.

    • Q fever

      • No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
      • Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
      • Notably a cause of culture-negative endocarditis.
      • Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
      • Closely related to Rickettsia but not classified within that genus.

    Common Rash Diseases

    • Rocky Mountain spotted fever

      • Primarily occurs in South Atlantic states, especially North Carolina.
      • Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.

    • Typhus

      • Transmitted by fleas (endemic) and human body louse (epidemic).
      • Rash starts at the center of the body and spreads outward, sparing palms and soles.

    Rare Rash Diseases

    • Ehrlichiosis

      • Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.

    • Anaplasmosis

      • Also tick-borne; features granulocytes with morulae C in the cytoplasm.

    • Q fever

      • No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
      • Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
      • Notably a cause of culture-negative endocarditis.
      • Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
      • Closely related to Rickettsia but not classified within that genus.

    Common Rash Diseases

    • Rocky Mountain spotted fever

      • Primarily occurs in South Atlantic states, especially North Carolina.
      • Rash typically begins on wrists and ankles, then spreads to trunk, palms, and soles.

    • Typhus

      • Transmitted by fleas (endemic) and human body louse (epidemic).
      • Rash starts at the center of the body and spreads outward, sparing palms and soles.

    Rare Rash Diseases

    • Ehrlichiosis

      • Caused by ticks; characterized by monocytes containing morulae B, which are mulberry-like inclusions in the cytoplasm.

    • Anaplasmosis

      • Also tick-borne; features granulocytes with morulae C in the cytoplasm.

    • Q fever

      • No arthropod vector; caused by a bacterium inhaled through aerosols from cattle or sheep amniotic fluid.
      • Common symptoms include headache, cough, flu-like symptoms, pneumonia, and may include hepatitis.
      • Notably a cause of culture-negative endocarditis.
      • Considered complicated due to lack of rash or known vector; organism can survive outside as an endospore.
      • Closely related to Rickettsia but not classified within that genus.

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    Description

    Test your knowledge on rickettsial diseases and vector-borne illnesses with a focus on common and rare rashes. This quiz will cover key information about the diseases, their vectors, and the characteristics of the rashes they produce.

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