Leukopenia Quiz

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Questions and Answers

What is the most common cause of acute lymphadenitis?

  • Bacterial infection (correct)
  • Parasitic infection
  • Fungal infection
  • Viral infection

Which disorder is characterized by a decrease in circulating neutrophils to a severe level of less than 500/mm?

  • Severe neutropenia (correct)
  • Neutrophilia
  • Leukocytosis
  • Agranulocytosis

What is the most common cause of autoimmune neutropenia?

  • Viral infection
  • Bacterial infection
  • Fungal infection
  • Neutrophil antibodies (correct)

Which syndrome is characterized by exocrine pancreatic insufficiency, bone marrow dysfunction, and skeletal abnormalities?

<p>Shwachman-Diamond Syndrome (A)</p> Signup and view all the answers

What is the most common cause of eosinophilia?

<p>Allergic reactions (B)</p> Signup and view all the answers

Which cell type contains histamines and heparin?

<p>Basophils (B)</p> Signup and view all the answers

What is the main function of B cells?

<p>Responsible for humoral immunity (D)</p> Signup and view all the answers

What is the characteristic feature of toxic granulation in white cells?

<p>Seen in severe infection/inflammatory states (A)</p> Signup and view all the answers

What is the primary function of neutrophils?

<p>Immobilize or kill pathogens through releasing neutrophil extracellular traps (NETs) (D)</p> Signup and view all the answers

What is the characteristic feature of Dohle bodies in white cells?

<p>Remnants of rough ER (A)</p> Signup and view all the answers

What is the most common cause of monocytosis?

<p>Neoplastic lesions (B)</p> Signup and view all the answers

What is the characteristic feature of leukemoid reaction in white cells?

<p>á immature cells, particularly more myelocytes than in left shift (C)</p> Signup and view all the answers

Which condition is characterized by a decrease in circulating neutrophils to a mild level of 1000-1500/mm?

<p>Neutropenia (B)</p> Signup and view all the answers

What is the characteristic feature of Chediak-Higashi Syndrome?

<p>Recurrent bacterial infections and abnormal NK function (A)</p> Signup and view all the answers

What is the most common cause of eosinophilia?

<p>Parasite infections (B)</p> Signup and view all the answers

Which disorder is characterized by a defect in bone marrow stroma and stem cells, exocrine pancreatic insufficiency, and skeletal abnormalities?

<p>Shwachman-Diamond Syndrome (D)</p> Signup and view all the answers

What is the main function of basophils?

<p>Contain histamines (vasodilation) and heparin (anticoagulant) (D)</p> Signup and view all the answers

What is the characteristic feature of Dohle bodies in white cells?

<p>Remnants of Rough ER (C)</p> Signup and view all the answers

What is the primary function of T cells?

<p>Mature in thymus and responsible for cell-mediated immunity (A)</p> Signup and view all the answers

What is the most common cause of monocytosis?

<p>Neoplastic lesions especially myeloproliferative disorders (A)</p> Signup and view all the answers

What is the characteristic feature of toxic granulation in white cells?

<p>Seen in severe infection/inflammatory states (B)</p> Signup and view all the answers

What is the primary function of B cells?

<p>Responsible for humoral immunity (C)</p> Signup and view all the answers

What is the characteristic feature of leukemoid reaction in white cells?

<p>á immature cells, particularly more myelocytes than in left shift (D)</p> Signup and view all the answers

What is the most common cause of acute lymphadenitis?

<p>Bacterial infection (D)</p> Signup and view all the answers

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